これまでの業績（2000～2004年）
2004年
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Unidirectional helical assembly via triple hydrgen bonds between chiral tris(oxazoline) and achiral tris(imidazoline)
S. R. Nam, H.-J. Kim, S. Sakamoto, K. Yamaguchi and J.-I. Hong
Tetrahedron Lett. 45, 1339-1342 (2004). -
コールドスプレー質量分析法の開発
山口 健太郎
ぶんせき 2, 106-110 (2004). -
α,α-Disubstituted Glycines Bearing a Large Hydrocarbon Ring: Peptide Self-Assembly through Hydrophobic Recognition
T. Ohwada, D. Kojima, T. Kiwada, S. Futaki, Y. Sugiura, K. Yamaguchi, Y. Nishi and Y. Kobayashi
Chem. Eur. J. 10(3), 617-626 (2004). -
Reaction-Phase-Selective Inter- and Intramolecular Photochemical Reaction of 2-Pyridone Derivatives
S. Kohmoto, T. Noguchi, H. Masu, K. Kishikawa, M. Yamamoto and K. Yamaguchi
Org. Lett. 6(5), 683-685 (2004). -
Non-destructive measurement of seed storage oils by solid-state NMR ― A convenient method using usual machine ―
M. Shimanuki, A. Nagae, H. Masu, H. Seki and N. Okagami
The Techinical Bulletin of Faculty of Horticulture, Chiba University 58, 93-98 (2004). -
ACYLATED PEONIDIN 3-RUTINOSIDE-5-GLUCOSIDES FROM COMMERCIAL PETUNIA CULTIVARS WITH PINK FLOWERS
F. Tatsuzawa, Y. Toya, H. Watanabe, Y. Hirayama, K. Shinoda, R. Hara, H. Seki and T. Ando
HETEROCYCLES 63(3), 509-517 (2004). -
Narcissistic aggregation of steroid compounds in diluted solution elucidated by CSI-MS, PFG NMR and X-ray analysis
K. Shikii, S. Sakamoto, H. Seki, H. Utsumi and K. Yamaguchi
Tetrahedron 60, 3487-3492 (2004). -
Cold-spray ionization mass spectrometry
Y. Sei, K. Shikii, S. Sakamoto, M. Kunimura, T. Kobayashi, H. Seki, M. Tashiro, M. Fujita and K. Yamaguchi
BUNSEKI KAGAKU 53(6), 457-474 (2004). -
Facile Characterization of Polymer-Supported Reagents Using Cross Polarization Magic Angle Spinning Method in Solid State 13C-NMR
K. Shikii, H. Seki, K. Yamaguchi, W. Disadee, T. Watanabe and T. Ishikawa
Chem. Pharm. Bull. 52(7), 864-865 (2004). -
Acylated anthocyanins in the flowers of Vanda (Orchidaceae)
F. Tatsuzawa, N. Saito, H. Seki, M. Yokoi, T. Yukawa, K. Shinoda, T. Honda
BIOCHEM SYST ECOL. 32, 651-664 (2004). -
Application of Difference NOE-pumping NMR Technique and Cold-Spray Ionization Mass Spectrometry to Identify a Ligand Binding with a Protein Receptor
H. Seki, Y. Sei, K. Shikii, S. Shimotakahara, H. Utsumi, K. Yamaguchi and M. Tashiro
Anal. Sci. 20, 1467-1470 (2004). -
Application of the 19F NMR Technique to Observe Binding of the General Anesthetic Halothane to Human Serum Albumin
K. Shikii, S. Sakurai, H. Utsumi, H. Seki and M. Tashiro
Anal. Sci. 20, 1475-1477 (2004). -
Cyclic Voltammetric Study of Intramolecular and Intermolecular Hypervalent Organoantimony Complexes with Sb…N Bonding
K. Hoshino, T. Ogawa, S. Yasuike, H. Seki, J. Kurita, T. Tokunaga and K. Yamaguchi
J. Phys. Chem. B. 108(48), 18698-18704 (2004). -
Non-C2-symmetrical antimony-phosphorus ligand, (R/S)-2-diphenylphsosphano-2'-di(p-tolyl)stibano-1,1'-binaphthyl(BINAPSb): preparation and its use for asymmetric reactins as a chiral auxiliary
S. Yasuike, S. Kawara, S. Okajima, H. Seki, K. Yamaguchi and J. Kurita
Tetrahedron Lett. 45, 9135-9138 (2004). -
Optimization of the internal calibrant for exact mass measurements by FAB-MS
R. Hara, C. Sakabe, T. Ohwada and K. Yamaguchi
BUNSEKI KAGAKU 53(6), 623-627 (2004). -
Induction of a Remarkable Conformational Change in a Human Telomeric Sequence by the Binding of Naphthyridine Dimer: Inhibition of the Elongation of a Telomeric Repeat by Telomerase
K. Nakatani, S. Hagihara, S. Sando, S. Sakamoto, K. Yamaguchi, C. Maesaea and I. Saito
J. Am. Chem. Soc. 125(3), 662-666 (2003). -
Secondary Hypervalent I(III)!AO Interactions: Synthesis and Structure of Hypervalent Complexes of Diphenyl-|E3-iodanes with 18-Crown-6
M. Ochiai, T. Suefuji, K. Miyamoto, N. Tada, S. Goto, M. Shiro, S. Sakamoto and K. Yamaguchi
J. Am. Chem. Soc. 125(3), 769-773 (2003). -
Selective cross-catenation of Pd(II) and Pt(II) coordiantion rings
A. Hori, H. Kataoka, T. Okano, S. Sakamoto, K. Yamaguchi and M. Fujita
Chem. Commun. 2003, 182-183. -
Construction of Monomeric and Polymeric Porphyrin Compartments by a Pd(II)-Pyridine Interaction and Their Chiral Twisting by a BINAP Ligand
M. Ayabe, K. Yamashita, K. Sada, S. Shinkai, A. Ikeda, S. Sakamoto and K. Yamaguchi
J. Org. Chem. 68(3), 1059-1066 (2003). -
Novel Channel Structure of Bile Acid-Guest Inclusion Complex Formed between Ursodeoxycholic Acid and Phenanthrene
T. Fukami, K. Yamaguchi, Y. Tozuka, K. Moribe, T. Oguchi and K. Yamamoto
Chem. Pharm. Bull. 51(2), 227-229 (2003). -
Hyperstranded DNA Architectures Observed by Cold-Spray Ionization Mass Spectrometry
S. Sakamoto and K. Yamaguchi
Angew. Chem. Int. Ed. 42(8), 905-908 (2003). -
Formation and destruction of the guanine quartet in solution observed by cold-spray ionization mass spectrometry
S. Sakamoto, K. Nakatani, I. Saito and K. Yamaguchi
Chem. Commun. 2003, 788-789. -
Direct Catalytic Asymmetric Aldol Reaction of Hydroxyketones: Asymmetric Zn Catalysis with a Et2Zn/Linked-BINOL Complex
N. Kumagai, S. Matsunaga, T. Kinoshita, S. Harada, S. Okada, S. Sakamoto, K. Yamaguchi and M. Shibasaki
J. Am. Chem. Soc. 125(8), 2169-2178 (2003). -
Solvent-Induced Polymorphism of Three-Dimensional Hydrogen-Bonded Networks of Hexakis (4-carbamoylphenyl)benzene
K. Kobayashi, A. Sato, S. Sakamoto and K. Yamaguchi
J. Am. Chem. Soc. 125(10), 3035-3045 (2003). -
Regioselective Photocycloaddition of Pyridine Derivatives to Electron-Rich Alkenes
M. Sakamoto, T. Sano, S. Fujita, M. Ando, K. Yamaguchi, T. Mino and T. Fujita
J. Org. Chem. 68(4), 1447-1450 (2003). -
Water-soluble supramolecular bowls formed by intra-clipping of resorcin[4]arene-based ligands with Pd(II) ions
S. J. Park, D. M. Shin, S. Sakamoto, K. Yamaguchi, Y. K. Chung, M. S. Lah and J.-I. Hong
Chem. Commun. 2003, 998-999. -
Modulation of a Supramolecular Bowls and Pot by Changing Solvent Systems and/or Metal/Ligand Ratios
S. J. Park, J. W. Lee, S. Sakamoto, K. Yamaguchi and J.-I. Hong
Chem. Eur. J. 9(8), 1768-1774 (2003). -
Synthetic Studies on Himbacine, a Potent Antagonist of the Muscarinic M2 Subtype Receptor. Part 2: Synthesis and Muscarinic M2 Subtype Antagonistic Activity of the Novel Himbacine Congeners Modified at the C-3 Position of Lactone Moiety
M. Takadoi, K. Yamaguchi and S. Terashima
Bioorg. Med. Chem. 11, 1169-1186 (2003). -
Low Tm DNA duplexes observed by cold-spray ionization mass spectrometry
S. Sakamoto and K. Yamaguchi
Tetrahedron Lett. 44, 3341-3344 (2003). -
Helical Assembly through Charged Hydrogen Bonds in Aqueous Solvent
H. Kim, S. Sakamoto, K. Yamaguchi and J. Hong
Org. Lett. 5(7), 1051-1054 (2003). -
Amide Conformational Switching Induced by Protonation of Aromatic Substituent
R. Yamasaki, A. Tanatani, I. Azumaya, S. Saito, K. Yamaguchi and H. Kagechika
Org. Lett. 5(8), 1265-1267 (2003). -
Cold-spray ionization mass spectrometry: principle and applications
K. Yamaguchi
J. Mass Spectrom. 38, 473-490 (2003). -
Synthesis, Characterization, and Reaction of Ethynyl(phenyl)-|E3-lodane Complex with [18]Crown-6
M. Ochiai, K. Miyamoto, T. Suefuji, S. Sakamoto, K. Yamaguchi and M. Shiro
Angew. Chem. Int. Ed. 42(19), 2191-2194 (2003). -
Physarigins A-C, three new yellow pigments from a cultured myxomycete Physarum rigidum
Y. Misono, A. Ito, J. Matsumoto, S. Sakamoto, K. Yamaguchi and M. Ishibashi
Tetrahedron Lett. 44, 4479-4481 (2003). -
Structure Reinvestigation of Gelsemoxonine, a Constituent of Gelsemium elegans, Reveals a Novel, Azetidine-Containing Indole Alkaloid
M. Kitajima, N. Kogure, K. Yamaguchi, H. Takayama and N. Aimi
Org. Lett. 5(12), 2075-2078 (2003). -
Synthesis of a novel crown ether derived from chiro-inositol and its catalytic activity on the asymmetric Michael addition
T. Akiyama, M. Hara, K. Fuchibe, S. Sakamoto and K. Yamaguchi
Chem. Commun. 2003, 1734-1735. -
Side chain-directed assembly of triangular molecular panels into a tetrahedron vs. open cone
M. Yoshizawa, M. Nagao, K. Umemoto, K. Biradha, M. Fujita, S. Sakamoto and K. Yamaguchi
Chem. Commun. 2003, 1808-1809. -
Synthesis of [L-Ala-1]RA-VII, [D-Ala-2]RA-VII, and [D-Ala-4]RA-VII by Epimerization of RA-VII, an Antitumor Bicyclic Hexapeptide from Rubia Plants, through Oxazoles
Y. Hitotsuyanagi, S. Sasaki, Y. Matsumoto, K. Yamaguchi, H. Itokawa and K. Takeya
J. Am. Chem. Soc. 125(24), 7284-7290 (2003). -
Quantitave Formation of [2]Catenanes Using Copper(I) and Palladium(II) as Templating and Assembling Centers: The Entwining Route and the Threading Approach
C. D-Buchecker, B. Colasson, M. Fujita, A. Hori, N. Geum, S. Sakamoto, K. Yamaguchi and J.-P Sauvage
J. Am. Chem. Soc. 125(19), 5717-5725 (2003). -
Easy formation of gold-like lustrous crystals with a high melting point from 1-aryl-2,5-bis[5-(tricyanoethenyl)-2-thienyl]pyrroles
K. Ogura, R. Zhao, M. Jiang, M. Akazome, S. Matsumoto and K. Yamaguchi
Tetrahedron Lett. 44, 3595-3598 (2003). -
PdII-Directed Dynamic Assembly of a Dodecapyridine Ligand into End-Capped and Open Tubes: The Inportance of Kinetic Control in Self-Assembly
S. Tashiro, M. Tominaga, T. Kusukawa, M. Kawano, S. Sakamoto, K. Yamaguchi and M. Fujita
Angew. Chem. Int. Ed. 42(28), 3267-3270 (2003). -
2,2'-Bis(diarylstibano)-1,1'-binaphthyls (BINASbs); an useful chiral ligand for palladium-catalyzed asymmetric allylic alkylation, and the structure of a BINASb!?PdCl2 complex
S. Yasuike, S. Okajima, K. Yamaguchi and J. Kurita
Tetrahedron Lett. 44, 6217-6220 (2003). -
A Cationic Guest in a 24+ Cationic Host
J.-P. Bourgeois, M. Fujita, M. Kawano, S. Sakamoto and K. Yamaguchi
J. Am. Chem. Soc. 125(31), 9260-9261 (2003). -
Control of Molecular Aggregations by Doping in Mesophases: Transformation of Smecitc C Phases to Smectic CA Phases by Addition of Long Bent-Core Molecules Possessing a Central Strong Dipole
K. Kishikawa, N. Muramatsu, S. Kohmoto, K. Yamaguchi and M. Yamamoto
Chem. Mater. 15(18), 3443-3449 (2003). -
Guest-Induced Assembly of Tetracarboxyl-Cavitand and Tetra(3-pyridyl)-Cavitand into a Heterodimeric Capsule via Hydrogen Bonds and CH-Halogen and/or CH-|D Interaction: Control of the Orientation of the Encapsulated Guest
K. Kobayashi, K. Ishii, S. Sakamoto, T. Shirasaka and K. Yamaguchi
J. Am. Chem. Soc. 125(35), 10615-10624 (2003). -
Synthesis and structure of supramolecular complexes between 1-alkynyl(phenyl)(tetrafluoroborato)-|E3-iodanes and 18-crown-6
M. Ochiai, K. Miyamoto, T. Suefuji, M. Shiro, S. Sakamoto and K. Yamaguchi
Tetrahedron 59, 10153-10158 (2003). -
Tandem mass spectormetric analysis of rare earth(III) complexes: evaluation of the relative strength of their Lewis acidity
H. Tsuruta, K. Yamaguchi and T. Imamoto
Tetrahedron 59, 10419-10438 (2003). -
Ten New Lycopodium Alkaloids Having the Lycopodane Skelton Isolated from Lycopodium Serratum THUNB
H. Takayama, K. Katakawa, M. Kitajima, K. Yamaguchi and N. Aimi
Chem. Pharm. Bull. 51(10), 1163-1169 (2003). -
Isolation, Characterization, and Reaction of Activated Iodosylbenzene Monomer Hydroxy(phenyl)iodonium Ion with Hypervalent Bonding: Supramolecular Complex PhI+OH!|18-Crown-6 with Secondary I!AO Interactions
M. Ochiai, K. Miyamoto, M. Shiro, T. Ozawa and K. Yamaguchi
J. Am. Chem. Soc. 125(43), 13006-13007 (2003). -
Photochemical mer￠afac One-way Isomerization of Phosphorescent Material. Studies by Time-resolved Spectroscopy for Tris[2-(4',6'-difluorophenyl)pyridine]iridium(III) in Solution
T. Karatsu, T. Nakamura, S. Yagai, A. Kitamura, K. Yamaguchi, Y. Matsushima, T. Iwata, Y. Hori and T. Hagiwara
Chem. Lett. 32(10), 886-887 (2003). -
Stabilization of a Self-assembled Coordination Nanotube by Covalent Link
M. Tominaga, M. Kato, T. Okano, S. Sakamoto, K. Yamaguchi and M. Fujita
Chem. Lett. 32(11), 1012-1013 (2003). -
A Novel Supramolecular Multicolor Thermometer by Self-Assembly of a |D-Extended Zinc Porphyrin Complex
A. Tsuda, S. Sakamoto, K. Yamaguchi and T. Aida
J. Am. Chem. Soc. 125(51), 15722-15723 (2003). -
Tandem Base-Promoted Ring-Opening/Brook Rearrangement/Allylic Alkylation of O-Silyl Cyanohydrins of |A-Silyl-|A,|A-epoxyaldehyde: Scope and Mechanism
M. Sasaki, E. Kawanishi, Y. Nakai, T. Matsumoto, K. Yamaguchi and K. Takeda
J. Org. Chem. 68, 9330-9339 (2003). -
An Evaluation of Amide Group Planarity in 7-Azabicyclo[2.2.1]heptane Amides. Low Amide Bond Rotation Barrier in Solution
Y. Otani, O. Nagae, Y. Naruse, S. Inagaki, M. Ohno, K. Yamaguchi, G. Yamamoto, M. Uchiyama and T. Ohwada
J. Am. Chem. Soc. 125(49), 15191-15199 (2003). -
Segment Identification of a Ligand Binding with a Protein Receptor Using Multidimensional T1|N-, Diffusion-Filtered and Diffusion-Ordered NOESY Experiments
H. Utsumi, H. Seki, K. Yamaguchi and M. Tashiro
Anal. Sci. 19, 1441-1443 (2003). -
New optically active organoantimony (BINASb) and bismuth (BINABi) compounds comprising a 1,1'-binaphthyl core: synthesis and their use in transition metal-catalyzed asymmetric hydrosilylation of ketones
S. Yasuike, S. Okajima, K. Yamaguchi, H. Seki and J. Kurita
Tetrahedron 59, 4959-4966 (2003). -
Cyclic Dibenzoylhydrazines Reproducing the Conformation of Ecdysone Agonists, RH-5849
T. Toya, K. Yamaguchi and Y. Endo
Bioorg. Med. Chem. 10, 953-961 (2002). -
Molecular construction based on icosahedral carboranes and aromatic N,N'-dimethylurea groups. Aromatic layered molecules and a transition metal complex
Y. Endo, C. Songkram, R. Yamasaki, A. Tanatani, H. Kagechika, K. Takaishi and K. Yamaguchi
J.Org.Chem. 657, 48-58 (2002). -
Alkali Metal-Mediated Proline Aggregation in Solution Observed by Coldspray Ionization Mass Spectrometry
M. Kunimura, S. Sakamoto and K. Yamaguchi
Org. Lett. 4(3), 347-350 (2002). -
Novel Superstructure of Nondiscoid Mesogens: Uneven-Parallel Association of Half-Disk Molecules, 3,4,5-Trialkoxybenzoic Anhydrides, to a Columnar Structure and Its One-Directionally Geared Interdigitation
K. Kishikawa, S. Furusawa, T. Yamaki, S. Kohmoto, M. Yamamoto and K. Yamaguchi
J. Am. Chem. Soc. 124(8), 1597-1605 (2002). -
Design and Synthesis of an Enzyme-Cleavable Sensor Molecule for Phosphodiesterase Activity Based on Fluorescence Resonance Energy Transfer
H. Takakusa, K. Kikuchi, Y. Urano, S. Sakamoto, K. Yamaguchi and T. Nagano
J. Am. Chem. Soc. 124(8), 1653-1657 (2002). -
Designed Self-Assembly of Molecular Necklaces
K. Park, S. Kim, J. Heo, D. Whang, S. Sakamoto, K. Yamaguchi and K. Kim
J. Am. Chem. Soc. 124(10), 2140-2147 (2002). -
Anicequol, a Novel Inhibitor for Anchorage-independent Growth of Tumor Cells from Penicillium aurantiogriseum Dierckx TP-F0213
Y. Igarashi, A. Sekine, H. Fukazawa, Y. Uehara, K. Yamaguchi, Y. Endo, T. Okuda, T. Furumai and T. Oki
J Antibiot. 55(4), 371-376 (2002). -
A novel [60]fullerene receptor with a Pd(II)-switched bisporphyrin cleft
M. Ayabe, A. Ikeda, S. Shinkai, S. Sakamoto and K. Yamaguchi
Chem. Commun. 2002(8), 1032-1033. -
Tandem Base-Promoted Ring Opening/Brook Rearrangement/Allylic Alkylation of O-Silyl Cyanohydrins of β-Silyl-α,β-epoxyaldehydes
K. Takeda, E. Kawanishi, M. Sasaki, Y. Takahashi and K. Yamaguchi
Org. Lett. 4(9), 1511-1514 (2002). -
Enhanced Radical-Scavenging Activity of a Planar Catechin Analogue
K. Fukuhara, I. Nakanishi, H. Kansui, E. Sugiyama, M. Kimura, T. Shimada, S. Urano, K. Yamaguchi and N. Miyata
J. Am. Chem. Soc. 124(21), 5952-5953 (2002). -
Guest-induced organization of an optimal receptor from a dynamic receptor library: Spectroscopic screening
Y. Kubota, S. Sakamoto, K. Yamaguchi and M. Fujita
PNAS. 99(8), 4854-4856 (2002). -
A Self-Assembled Porphyrin Box from meso /_meso-Linked Bis{5-p-pyridyl-15-(3,5-di-octyloxyphenyl)porphyrinato zinc(II)}
A. Tsuda, T. Nakamura, S. Sakamoto, K. Yamaguchi and A. Osuka
Angew. Chem. Int. Ed. 41(15), 2817-2821 (2002). -
Design and Synthesis of a Novel Magnetic Resonance Imaging Contrast Agent for Selective Sensing of Zinc Ion
K. Hanaoka, K. Kikuchi, Y. Urano, M. Narazaki, T. Yokawa, S. Sakamoto, K. Yamaguchi and T. Nagano
Chem Biol. 9(9), 1027-1032 (2002). -
Collision-Induced Dissociation Actualized the H+-Promoted Reaction as Observed in Vitro; Harman Formation from β-Carboline-Type Monoterpenoid Glucoindole Alkaloids
N. Aimi, M. Kitajima, M. Yokoya, H. Takayama, S. Sakamoto and K. Yamaguchi
Chem. Pharm. Bull. 50(11), 1528-1529 (2002). -
Chirality Induction through the Reversible Catenation of Coordination Rings
A. Hori, A. Akasaka, K. Biradha, S. Sakamoto, K. Yamaguchi and M. Fujita
Angew. Chem. Int. Ed. 41(17), 3269-3272 (2002). -
A Supramolecular Oscillator Composed of Carbon Nanocluster C120 and a Rhodium(III) Porphyrin Cyclic Dimer
K. Tashiro, Y. Hirabayashi, T. Aida, K. Saigo, K. Fujiwara, K. Komatsu, S. Sakamoto and K. Yamaguchi
J. Am. Chem. Soc. 124(41), 12086-12087 (2002). -
Seven new Lycopodium alkaloids, lycoposerramines-C, -D, -E, -P, -Q, -S, and -U, from Lycopodium serratum Thunb
H. Takayama, K. Katakawa, M. Kitajima, K. Yamaguchi and N. Aimi
Tetrahedron Letters. 43, 8307-8311 (2002). -
Synthesis and Muscarinic M2 Subtype Antagonistic Activity of Enantiomeric Paris of 3-Demethylhimbacine (3-Norhimbacine) and Its C4-Epimer
M. Takadoi, K. Yamaguchi and S. Terashima
Bioorg. Med. Chem. Lett. 12, 3271-3273 (2002). -
A dendrimer-supported heterobimetallic asymmetric catalyst
T. Arai, T. Sekiguti, Y. Iizuka, S. Takizawa, S. Sakamoto, K. Yamaguchi and H. Sasai
Tetrahedron: Asymmetry 13, 2083-2087 (2002). -
Allosteric Binding of an Ag+ Ion to Cerium(IV) Bis-porphyrinates Enhances the Rotational Activity of Porphyrin Ligands
M. Ikeda, M. Takeuchi, S. Shinkai, F. Tani, Y. Naruta, S. Sakamoto and K. Yamaguchi
Chem. Eur. J. 8(24), 5541-5550 (2002). -
Diastereoselective formation of cage-type adducts via a novel photoreaction of nicotinic acid esters with furan
M. Sakamoto, T. Yagi, S. Fujita, M. Ando, T. Mino, K. Yamaguchi and T. Fujita
Tetrahedron Lett. 43, 6103-6105 (2002). -
A molecular sphere of octahedral symmetry
D. K. Chand, K. Biradha, M. Fujita, S. Sakamoto and K. Yamaguchi
Chem. Commun. 2002, 2486-2487. -
Unprecedented host-induced intramolecular charge-transfer complex formation
J. W. Lee, K. Kim. S. W. Choi, Y. H. Ko, S. Sakamoto, K. Yamaguchi and K. Kim
Chem. Commun. 2002, 2692-2693. -
Crystal Structure of the Alcoholates and the Ansolvate of PNU-97018, an Angiotensin II Receptor Antagonist
H. Ishii, K. Yamaguchi, H. Seki, S. Sakamoto, Y. Tozuka, T. Oguchi and K. Yamamoto
Chem. Pharm. bull. 50(8), 1022-1027 (2002). -
Synthesis of Sb-chiral organoantimony compounds having intramolecular Sb…N interaction and their separation into optically pure compounds via ortho-palladated benzylamine complexes
S. Okajima, S. Yasuike, N. Kakusawa, A. Osada, K. Yamaguchi, H. Seki and J. Kurita
J. Org. Chem. 656, 234-242 (2002). -
Electrochemical Preparation and Characterization of Meisenheimer Complexes of Trinitrofluorenone with Pyrrole, Indole, and Carbazole
N. Ozawa, H. Seki, T. Kitamura, H. Kokado, T. Ishikawa and K. Hoshino
Chem. Mater. 14(3), 1067-1074 (2002). -
Characterization and Quantitation of Clarithromycin Polymorphs by Powder X-Ray Diffractometry and Solid-State NMR Spectroscopy
Y. Tozuka, A. Ito, H. Seki,T. Oguchi and K. Yamamoto
Chem. Pharm. Bull. 50(8), 1128-1130 (2002). -
Transport Properties of Comb-Type Grafted and Normal-Type N-Isopropylacrylamide Hydrogel
M. Annaka, M. Sugiyama, M. Kasai, T. Nakahira, T. Matsuura, H. Seki, T. Aoyagi and T. Okano
Langmuir 18(20), 7377-7383 (2002). -
Chemical and Cytotoxic Constituents from the Stem of Machilus Zuihoensis
M.-J. Cheng, B. Jayaprakasam, T. Ishikawa, H. Seki, I.-L. Tsai, J.-J. Wang and I.-S. Chen
HELV CHIM ACTA. 85, 1909-1914 (2002). -
Chemistry of N-Hydroxyguanidines: Photo-Sensitized Oxygenation and Reaction with Nitric Oxide
H. Kabasawa, M. Ikeno, M. Suzukawa, K. Higuchi, K. Yanagisawa, H. Seki, T. Tokunaga and T. Ishikawa
HELV CHIM ACTA. 85, 2636-2643 (2002). -
Camptothecin-related alkaloids from hairy roots of Ophiorrhiza pumila
M. Kitajima, S. Yoshida, K. Yamagata, M. nakamura, H. Takayama, K. Saito, H. Seki and N. Aimi
Tetrahedron 58, 9169-9178 (2002). -
Dynamic Assembly of Coordination Boxes from (en)Pd(II) Unit and a Rectangular Panel-like Ligand: NMR, CSI-MS, and X-ray Studies
Y. Yamanoi, Y. Sakamoto, T. Kusukawa, M. Fujita, S. Sakamoto and K. Yamaguchi
J. Am. Chem. Soc. 123(5), 980-981 (2001). -
Laboratory Culture of the Myxomycetes: Formation of Fruiting Bodies of Didymium bahiense and its Plasmodial Production of Makaluvamin A
M. Ishibashi, T. Iwasaki, S. Imai, S. Sakamoto, K. Yamaguchi and A. Ito
J Nat Prod. 64, 108-110 (2001). -
Trapping of 1,8-Biradical Intermediates by Molecular Oxygen in Photocycloaddition of Naphthyl-N-(naphthylcarbonyl)carboxamides; Formation of Novel 1,8-Epidioxides and Evidence of Stepwise Aromatic Cycloaddition
S. Kohmoto, T. Kobayashi, J. Minami, X. Ying, K. Yamaguchi, T. Karatsu, A. Kitamura, K. Kishikawa and M. Yamamoto
J. Org. Chem. 66, 66-73 (2001). -
Metal-Mediated Self-Assembly of Pyridylcalixarenes: Prevention of Intramolecular Metal Chelation Is Essential in Constructing Molecular Capsules
Z. Zhong, A. Ikeda, M. Ayabe, S. Shinkai, S. Sakamoto and K. Yamaguchi
J. Org. Chem. 66(3), 1002-1008 (2001). -
Novel Pseudorotaxane-Terminated Dendrimers: Supramolecular Modification of Dendrimer Periphery
J. W. Lee, Y. H. Ko, S.-H. Park, K. Yamaguchi and K. Kim
Angew. Chem. Int. Ed. 40, No. 4, 746-749 (2001). -
Highly Potent Cell Differentiation-Inducing Analogues of 1a,25-DihydroxyviaminD3: Synthesis and Biological Activity of 2-Methyl-1, 25-dihydroxyvitamin D3 with Side Chain Modifications
T. Fujishima, L. Zhaopeng, K. Konno, K. Nakagawa, T. Okano, K. Yamaguchi and H. Takayama
Bioorg. Med. Chem. 9, 525-535 (2001). -
A new approach to the epimeric analogure of cyclic peptides: epimerization via oxazoles of RA-VII, an anti-tumour bicyclic hexapeptide from Rubia plants
Y. Hitutsuyanagi, Y. Matsumoto, S. Sakai, K. Yamaguchi, K. Itokawa and K. Takeya
Tetrahedron Lett. 42, 1535-1537 (2001). -
Catalytic Asymmetric Epoxidation of Enones Using La-BINOL-Triphenylarsine Oxide Complex: Structural Determination of the Asymmetric Catalyst
T. Nemoto, T. Ohshima, K. Yamaguchi and M. Shibasaki
J. Am. Chem. Soc. 123(12), 2725-2732 (2001). -
Creation of Novel Chiral Cryptophanes by a Self-Assembling Method Utilizing a Pyridil-Pd(II) Interaction
Z. Zhong, A. Ikeda, M. Ayabe, S. Shinkai, S. SakamotoK. Yamaguchi
Org. Lett. 3(7), 1085-1087 (2001). -
Investigation of areneーarene interaction in stereoselective MCPBA epoxidation
K. Kishikawa, M. Naruse, S. Kohmoto, M. Yamamoto and K. Yamaguchi
J. Chem. Soc. Perkin Trans. 1. 2001, 462-468. -
Selective Inclusion of a Hetero-Guest Pair in a Molecular Host: Formation of Stable Charge-Transfer Complexes in Cucurbit[8]uril
H. J. Kim, J. Heo, W. S. Jeon, E. Lee, J. Kim, S. Sakamoto, K. Yamaguchi and K. Kim
Angew. Chem. Int. Ed. 40(8), 1526-1529 (2001). -
Synthetic studies on kinamycin antibiotics: elaboration of a highly oxugenated D ring
T. Kumamoto, N. Tabe, K. Yamaguchi, H. Yagishita, H. Iwasa and T. Ishikawa
Tetrahedron 57, 2717-2728 (2001). -
A Self-assembled Homooxacalix[3]arene-based Dimeric Capsule Constructed by a PdII-pyridine Interaction Which Shows a Novel Chiral Twisting Motion in Response to Guest Inclusion
A.Ikeda, H. Udzu, A. Ahong, S. Shinkai, S. Sakamoto and K. Yamaguchi
J. Am. Chem. Soc. 123(17), 3872-3877 (2001). -
A Porphyrin Prism: Structural Switching Triggered by Guest- Inclusion
N. Fujita, K. Biradha, M. Fujita, S. Sakamoto and K. Yamaguchi
Angew. Chem. Int. Ed. 40(9), 1718-1721 (2001). -
Cyclic Dimers of Metalloporphyrins as Tunable Hosts for Fullerenes: A Remarkable Effect of Rhodium(III)
J.-Y. Zheng, K. Tashiro, Y. Hirabayashi, K. Kinbara, K. Saigo, T. Aida, S. Sakamoto and K. Yamaguchi
Angew. Chem. Int. Ed. 40(10), 1857-1861 (2001). -
Characterization of Encapsulating Supramolecules by Using CSI-MS with Ionization-Promoting Reagents
S. Sakamoto, M. Yoshizawa, T. Kusukawa, M. Fujita and K. Yamaguchi
Org. Lett. 3(11), 1601-1604 (2001). -
Synthesis of 1-Stibaphenalenes, the First Example of Group 15 Phenalenes, vai a 1, 5-Dilithium Intermediate
S. Yasuike, M. Niwa, K. Yamaguchi, T. Tsuchiya and J. Kurita
Chem. Lett. 2001, 554-555. -
Macrocycles within Macrocycles: Cyclen, Cyclam, and Their Transition Metal Complexes Encapsulated in Cucurbit[8]uril
S.-Y. Kim, I.-S. Jung, E. Lee, J. Kim, S. Sakamoto, K. Yamaguchi and K. Kim
Angew. Chem. Int. Ed. 40(11), 2119-2121 (2001). -
Further study of axial chirality due to an acyclic imide N-Ar bond: control of rotational barrier by electronic effects of acyl groups
K. Kondo, T. Iida, H. Fujita, T. Suzuki, R. Wakabayashi, K. Yamaguchi and Y. Murakami
Tetrahedron 57, 4115-4122 (2001). -
Constitution of Grignard Reagent RMgCl in Tetrhydrofuran
S. Sakamoto,T. Imamoto and K. Yamaguchi
Org. Lett. 3(12), 1793-1795 (2001). -
Macrocyclic multi-telluranes with hypervalent Te-O apical linkages
K. Kobayashi, H. Izawa, K. Yamaguchi, E. Horn and N. Furukawa
Chem. Commun. 2001, 1428-1429. -
A [2]catenane quantitatively assembled via copper(I) and palladium(II) coordination
C. D.-Buchecker, N. Geum, A. Hori, M. Fujita, S. Sakamoto, K. Yamaguchi and J.-P. Sauvage
Chem. Commun. 2001, 1182-1183. -
Stereoselection of srerically unbiased Diels-Alder dienes with spiro conjugation
H. Igarashi, S. Sakamoto, K. Yamaguchi and T. Ohwada
Tetrahedron Lett. 42, 5257-5260 (2001). -
Catalytic asymmetric aldol reaction of ketones and aldehydes using chiral calcium alkoxides
T. Suzuki, N. Yamagiwa, Y. Matsuo, S. Sakamoto, K. Yamaguchi, M. Shibasaki and R. Noyori
Tetrahedron Lett. 42, 4669-4671 (2001). -
Liquid-Crystalline Compounds Consisting of Two Mwsogenic Cores in Parallel Conformation
K. Kishikawa, Y. Miwa, T. Kurosaki, S. Kohmoto, M. Yamamoto and K. Yamaguchi
Chem. Mater. 13(8), 2468-2471 (2001). -
Structural Features of Aliphatic N-Nitrosamines of 7-Azabicyclo [2.2.1]heptanes That Facilitate N-NO Bond Cleavage
T. Ohwada, M. Miura, H. Tanaka, S. Sakamoto, K. Yamaguchi, H. Ikeda and S. Inagaki
J. Am. Chem. Soc. 123(42), 10164-10172 (2001). -
Cavity-Directed Synthesis of Labile Silanol Oligomers within Self-Assembled Coordination Cages
M. Yoshizawa, T. Kusukawa, M. Fujita, S. Sakamoto and K. Yamaguchi
J. Am. Chem. Soc. 123(43), 10454-10459 (2001). -
A dimer-to-dimer metal-metal linear aggregate from a (μ-1,3-NO3)2 double-bridged cis-(2,2'-bipyridine)palladium(II) cofacial dimer
S.-Y. Yu, M. Fujita and K. Yamaguchi
J. Chem. Soc. Dalton Trans. 2001, 3415-3416. -
Efficient and Versatile Synthesis of Novel 2α-Substituted 1α,25-Dihydroxyvitamin D3 Analogues and Their Docking to Vitamin D Receptors
Y. Suhara, K. Nihei, M. Kurihara, A. Kittaka, K. Yamaguchi, T. Fujishima, K. Konno, N. Miyata and H. Takayama
J. Org. Chem. 66(26), 8760-8771 (2001). -
Cucurbit[n]uril Derivatives Soluble in Water and Organic Solvents
J. Zhao, H.-J. Kim, J. Oh, S.-Y. Kim, J. W. Lee, S. Sakamoto, K. Yamaguchi and K. Kim
Angew. Chem. Int. Ed. 40(22), 4233-4235 (2001). -
Enantioselective Intramolecular Aromatic [4 + 4] Photocycloaddition in Crystalline State: Paramaeters for Reactivity
S. Kohmoto, Y. Ono, H. Masu, K. Yamaguchi, K. Kishikawa and M. Yamamoto
Org. Lett. 3(26), 4153-4155 (2001). -
DOSY Study on Dynamic Catenation: Self-Assembly of a [3]Catenane as a Meta-Stable Compound from Twelve Simple Components
A. Hori, K. Kumazawa, T. Kusukawa, D. K. Chand, M. Fujita, S. Sakamoto and K. Yamaguchi
Chem. Eur. J. 7(19), 4142-4149 (2001). -
A New Type of Lycopodium Alkaloid, Lycoposerramine-A, from Lycopodium serratum Thunb
H. Takayama, K. Katakawa, M. Kitajima, H. Seki, K. Yamaguchi and N. Aimi
Org. Lett. 3 (26), 4165-4167 (2001). -
Synthesis, molecular structure and fluxional behavior of (R)-7-p-tolyldinaphtho[2,1-b;1',2'-d]stibole:
the first isolated example of optically active group 15 dinaphthoheteroles
S. Yasuike, T. Iida, K. Yamaguchi, H. Seki and J. Kurita
Tetrahedron Lett. 42, 441-444 (2001). -
Synthesis and fluxional behavior of dinaphtho[2,1-b;1',2'-d]-siloles and -germoles, involving the first example of optically active group 14 dinaphthoheterols
S. Yasuike, T. Iida, S. Okajima, K. Yamaguchi, H. Seki and J. Kurita
Tetrahedron 57, 10047-10053 (2001). -
Structure revision of mitragynaline, an indole alkaloid in Mitragyna speciosa
H. Takayama, H. Ishikawa, M. Kurihara, M. Kitajima, S. Sakai, N. Aimi, H. Seki, K. Yamaguchi, I. M. Said and P. J. Houghton
Tetrahedron Lett. 42, 1741-1743 (2001). -
Modified guanidines as chiral superbases: application to asymmetric Michael reaction of glycine imine with acrylate or its related compounds
T. Ishikawa, Y. Araki, T. Kumamoto, H. Seki, K. Fukuda and T. Isobe
Chem. Commun. 2001, 245-246. -
Characterization of Nitrogen-Alloyed Activated Carbon Fiber
C.-M. Yang, M. EI-Merraoui, H. Seki and K. Kaneko
Langmuir 17(3), 675-680 (2001). -
Anionic [3,3] Rearrangements of Cyclic Hydrazine Diacylates to Medium-sized Cyclic Diamides and Their Structure
Y. Endo, T. Uchida and K. Yamaguchi
Heterocycles 53, 151-158 (2000). -
Rotaxane-base molecular switch with fluorescence signaling
S. I. Jae, W. Lee, S. Sakamoto, K. Yamaguchi and K. Kim
Tetrahedron Lett. 41, 471-475 (2000). -
Molecular capsule constructed by multiple hydrogen bonds: Self-assembly of cavitand tetracarboxylic acid with 2-aminopyrimidine
K. Kobayashi, T. Shirakawa, K. Yamaguchi, S. Sakamoto, E. Horn and N. Furukawa
Chem. Commun. 2000, 41-42. -
Characterization of Self-Assembling Nano-sized Structures by Means of Coldspray Ionization Mass Spectrometry
S. Sakamoto, M. Fujita, K. Kim and K. Yamaguchi
Tetrahedron 56, 955-964 (2000). -
New Cucurbituril Homologous: Synthesis, Isolation, Characterization and X-ray Crystal Structure of Cucurbit[n]uril. (n = 5,7 and 8)
J. Kim, I-S. Jung, S-Y. Kim, E. Lee, J-K. Kang, S. Sakamoto, K. Yamaguchi and K. Kim
J. Am. Chem. Soc. 122, 540-541 (2000). -
Catalytic Enantioselective meso-Epoxide Ring Opening Reaction with Phenolic Oxygen Nucleophile Promoted by Gallium Heterobimetalic Multifunctional Complexes
S. Matsunaga, J. Das, J. Roles, E. M. Vogel, N. Yamamoto, T. Ida, K. Yamaguchi and M. Shibasaki
J. Am. Chem. Soc. 122, 2252-2260 (2000). -
Electrospray Ionization Mass Spectrometric Observation of the Coordinative Interaction of a,b-Unsaturated Ketones with Cerium(III) Cation
K. Asakura, K. Yamaguchi and T. Imamoto
Chem. Lett. 2000, 424-425. -
Structural Formula and Chemical Name of Phenolsulfonphthalein
Z. Tamura and K. Yamaguchi
JPF. 9, 181-184 (2000). -
Chirality-Memory Molecule: Crystallographic and Spectroscopic Studies on Dynamic Molecular Recognition Events by Fully Substituted Chiral Porphyrins
Y. Mizuno, T. Aida and K. Yamaguchi
J. Am. Chem. Soc. 122, 5278-5285 (2000). -
Influence of Structure on N-NO Bond Cleavage of aliphatic N-nitrosoamines
M. Miura, S. Sakamoto, K. Yamaguchi and T. Ohwada
Tetrahedron Lett. 41, 3637-3641 (2000). -
Synthesis, Conformation, and Chemical Properties of New Mini Parallel Double-Stranded Peptides Conjugated with -Phe-Phe- and -Phe-Phe-X-Sequences
S. Kobayashi, H. Kobayashi, T. Yamaguchi, M. Nishida, K. Yamaguchi, M. Kurihara, N. Miyata and A. Tanaka
Chem. Pharm. Bull. 48 (7), 920-934 (2000). -
Ship-in -a-Bottle Synthesis of Otherwise Labile Cyclic Trimer of Siloxanes in Self-assembled Coordination Cage
M. Yoshizawa, T. Kusukawa, M. Fujita and K. Yamaguchi
J. Am. Chem. Soc. 122(26), 6311-6312 (2000). -
Novel Axially Chiral Macrolactam by Grubbs Ring-Closing Metathesis (RCM)
M. Arisawa, H. Kaneko, A. Nishida, K. Yamaguchi and M. Nakagawa
Synlett 6, 841-843 (2000). -
Molecular Paneling via Coordination: Guest-Controlled Assembly of Open Coneand Tetrahedron Structures from Eight Metals and Four Ligands
K. Umemoto, K. Yamaguchi and M. Fujita
J. Am. Chem. Soc. 122, 7150-7151 (2000). -
A novel photocycloaddition of substituted pyridines with benzofuran
M. Sakamoto, A. Kinbara, T. Yagi, T. Mino, K. Yamaguchi and T. Fujita
Chem. Commun. 2000, 1201-1202 (2000). -
Degradation of an antitumour bicyclic hexapeptide RA-VII into cycloisodityrosines
Y. Hitotsuyanagi , T. Hasuda , Y. Matsumoto, K. Yamaguchi, H. Itokawa and K. Takeya
Chem. Commun. 2000, 1633-1634 (2000). -
Synthetic studies on kinamycin andibiotics: elaboration of a highly oxygenated D-ring
T. Kumamoto, N. Tabe, K. Yamaguchi and T. Ishikawa
Tetrahedron Lett. 41, 5693-5697 (2000). -
Radical Cyclization of O-Glycosides Using 1,1,2,2-Tetraphenyldisilane as a Radical Reagent: Preparation of Bicyclic Sugars
O. Yamazaki, K. Yamaguchi, M. Yokoyama and H. Togo
J. Org. Chem. 65, 5440-5442 (2000). -
A Novel Photochemical Cycloaddition of 1-Cyanonaphthalene to Substituted Pyridines
M. Sakamoto, T. Yagi, T. Mino, K. Yamaguchi and T. Fujita
J. Am. Chem. Soc. 122, 8141-8144 (2000). -
Structures of N,N'-bis(1,2-dicarba-closo-dodecaboran-1-yl)phenylureas building blocks for carborane-containing macromolecules
C. Songkram, A. Tanatani, R. Yamasaki, K. Yamaguchi, H. Kagechika and Y. Endo
Tetrahedron Lett. 41, 7065-7070 (2000). -
Solid-State Photochemistry: Absolute Asymmetric b-Thiolactam Synthesis from Achiral N,N-Dibenzyl-a,b-unsaturated Tioamides
M. Sakamoto, M. Takahashi, W. Arai, T. Mino, K. Yamaguchi, S. Watanabe and T. Fujita
Tetrahedron 56, 6795-6804 (2000). -
First Total Synthesis of (+)-Polyoxyn B and (+)-Polyoxyn D
K. Uchida, K. Kato, K. Yamaguchi and H. Akita
Heterocycles 53, 2253-2259 (2000). -
Synthesis, Bilolgical Evaluation, and Conformational Analysis of A-Ring Diastereomers of 2-Methyl-1,25-dihydroxyvitamin D3 and Their 20-Epimers: Unique Activity Profiles Depending on the Stereochemistry of the A-Ring and at C-20
K. Konno, M. Fujishima, S. Maki, Z. Liu, D. Miura, M. Chokki, S. Ishizuka, K. Yamaguchi, Y. Kan, M. Kurihara, N. Miyata, C. Smith, H. F. DeLuca and H. Takayama
J. Med. Chem. 43, 4247-4265 (2000). -
A self-assembled Porphyrin-based Dimeric Capsule Constructed by a Pd(II)-pyridine Interaction Which Shows Efficient Guest Inclusion
A. Ikeda, M. Ayabe, S. Shinkai, S. Sakamoto and K. Yamaguchi
Org. Lett. 23, 3707-3710 (2000). -
Difference in guest-inclusion abilities of anti- and syn-rotamers
K. Kishikawa, C. Iwashima, S. Kohmoto, K. Yamaguchi and M. Yamamoto
J. Chem. Soc. Perkin Trans. 1. 2000, 2217-2221. -
A Chiral Axis due to an Acyclic Imide -Ar Bond: a Study of Steric Effects of Acyl Groups on Racemization
K. Kondo, T. Iida, H. Fujita, T. Suzuki, K. Yamaguchi and Y. Murakami
Tetrahedron 56, 8883-8891 (2000). -
Molecular Design of a Novel Dendrimer Porphyrin for Supramolecular Fullerene/Dendrimer Hybridization
Tomoko Nishioka, Kentaro Tashiro, Takuzo Aida, Jian-Yu Zheng, Kazushi Kinbara, Kazuhiko Saigo, S. Sakamoto and K. Yamaguchi
Macromolecules 33, 9182-9184 (2000). -
New Dendritic Cage Compounds: Synthesis, Mass Spectrometric Characterization and Photochemical Properties of Dendrimers with a-Carboxy-2-nitrobenzyl Caged Compounds at Their Periphery
S. Watanabe, M. Sato, S. Sakamoto, K. Yamaguchi and M. Iwamura
J. Am. Chem. Soc. 122, 12588-12589 (2000). -
Diastereoselective intramolecular [4 +4] photocycloaddition reaction of N-(naphthlcarboly) anthracene-9-carboxamides: temperature effects and reversal of diastereoselectivity
S. Khomoto, H. Masu, C. Tatsuno, K. Kishikawa, M. Yamamoto and K. Yamaguchi
J. Chem. Soc. Perkin Trans. 1. 2000, 4464-4468. -
Preparation and Reactivities of Novel (Diacetoxyiodo)arenes Bearing Heteroaromatics
H. Togo, T. Nabana and K. Yamaguchi
J. Org. Chem. 65, 8391-8394 (2000). -
Direct detection of intramolecular Sb…N nonbonded interaction by 1H-13C and 1H-15N heteronuclear multiple bond correlation spectroscopy
T. Tokunaga, H. Seki, S. Yasuike, M. Ikoma, J. Kurita and K. Yamaguchi
Tetrahedron Lett. 41, 1031-1034 (2000). -
A New Broad Band Probe Covering from 31P- to 35Cl-Nuclear Magnetic Resonance
H. Seki, H. Ikeda, T. Tokunaga, H. Utsumi, M. Annaka and K. Yamaguchi
Anal. Sci. 16, 333-334 (2000). -
Confirmation and Characterization of the Hypervalent Sb…N Bonding Recognized in Triarylstibanes Bearing an Amino Side Chain by X-Ray, NMR and Theoretical Calculations
T. Tokunaga, H. Seki, S. Yasuike, M. Ikoma, J. Kurita and K. Yamaguchi
Tetrahedron 56, 8833-8839 (2000). -
Synthesis and resolution of 2,2'-bis[di(p-tolyl)stibano]-1,1'-binaphthyl (BINASb); the first example of an optically active organoantimony ligand for asymmetric synthesis
S. Yasuike, S. Okajima, K. Yamaguchi, H. Seki and J. Kurita
TETRAHEDRON-ASYMMETR. 11, 4043-4047 (2000). -
Determination of Heteronuclear Long-Range 1H-13C and 1H-15N Coupling Constants of Harman by Modified J-HMBC 2D NMR Techniques
H. Seki, T. Tokunaga, H. Utsumi and K. Yamaguchi
Tetrahedron 56, 2935-2939 (2000). -
Modified Guanidines as Potential Chiral Superbases. 2. Preparation of 1,3-Unsubstituted and 1- Substituted 2-Iminoimidazolidine Derivatives and a Related Guanidine by the 2-Chloro-1,3- dimethylimidazolinium Chloride-Induced Cyclization of Thioureas
T. Isobe, K. Fukuda, T. Tokunaga, H. Seki, K. Yamaguchi and T. Ishikawa
J. Org. Chem. 65, 7774-7778 (2000). -
Modified Guanidines as Potential Chiral Superbase 3. Preparation of 1,4,6-Triazacyclooctene Systems and 1,4-Disubstituted 2-Iminoimidazolidines by the 2-Chloro-1,3-dimethyl imidazo-linium Chloride (DMC)-Induced Cyclization of Guanidines with a Hydroxyethyl Substituent
T. Isobe, K. Fukuda, K. Yamaguchi, H. Seki, T. Tokunaga and T. Ishikawa
J. Org. Chem. 65, 7779-7785 (2000). -
Anomalous Substitution Effects in the Bischler-Napieralski Reaction of 2-Aryl Aromatic Formation
T. Ishikawa, K. Shimooka, T. Narioka, S. Noguchi, T. Saito, A. Ishikawa, E. Yamazaki, T. Harayama, H. Seki and K. Yamaguchi
J. Org. Chem. 65, 9143-9151 (2000). -
Identification of Deoxymiroestrol as the Actual Rejuvenating Principle of ''Kwao Keur'', Pueraria mirifica. The Known Miroestro May Be an Artifact
S. Chansakaow, T. Ishikawa, H. Seki, K. Sekine, M. Okada and C. Chaichanitipyuth
J NAT PROD. 63(2), 173-175 (2000). -
Multinuclear NMR Study on the Sol-Gel Transition of Aqueousκ- and λ-carrageenan Solutions: Selective Site Binding of Group I Cations
M. Annaka, K. Suzuki, R. Takahashi, T. Nakahira, M. Tokita, H. Utsumi and H. Seki
Jpn. J. Appl. Phys. 39(2000), 4094-4099. -
Differences in the floral anthocyanin content of red petunias and Petunia exserta
T. Ando, F. Tatsuzawa, N. Saito, M. Takahashi, Y. Tsunashima, H. Numajiri, H. Watanabe, H. Kokubun, R. Hara, H. Seki and G. Hashimoto
Phytochemistry 54, 495-501 (2000). -
Terihanine from Zanthoxylum nitidum
I.-L. Tsai, T. Ishikawa, H. Seki and I.-S. Chen
Chin. Pharm. J. 52(1), 43-49 (2000). -
NMR Study on the Sol-gel Transition of Gellan Gum
T. Tokunaga, M. Annaka, H. Seki, J. Honda, T. Nakahira, M. Tokita, K. Yamaguchi and H. Utusmi
Trans. Mat. Res. Soc. Japan. 25(3), 751-754 (2000). -
Structure Characterization, Biomimetic Total Synthesis, and Optical Purtity of Two New Pyrrolidine Alkaloids, Pandamarilactonine-A and -B, Isolated from Pandanus amaryllifolius Roxb
H. Takayama, T. Ichikawa, T. Kuwajima, M. Kitajima, H. Seki, N. Aimi and M. G. Nonato
J. Am. Chem. Soc. 122(36), 8635-8639 (2000). -
Acylated delphinidin 3-rutinoside-5-glucosides in the flowers of Petunia reitzii
F. Tatsuzawa, T. Ando, N. Saito, T. Kanaya, H. Kokubun, Y. Tsunashima, H. Watanabe, G. Hashimoto, R. Hara and H. Seki
Phytochemistry 54, 913-917 (2000).
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2003年
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2002年
原著論文（※太字下線は、本センター所属者を示す）
2001年
原著論文（※太字下線は、本センター所属者を示す）
2000年
原著論文（※太字下線は、本センター所属者を示す）