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Kazuo Okumura

Evaluation of clastogenicity of formic acid, acetic acid and lactic acid on cultured mammalian cells
1990 · Takeshi Morita, Kenzo Takeda, et al. · Mutation Research/Genetic Toxicology · 64
Effects of pH in the in vitro chromosomal aberration test
1989 · Takeshi Morita, Yoshie Watanabe, et al. · Mutation Research Letters · 57
Total Synthesis of Macrocyclic Antibiotic, Micrococcin P1
1998 · Chung-gi Shin, Kazuo Okumura, et al. · Heterocycles · 35
Convenient Synthesis of the Central 3,6-Di(2-thiazolyl)-2-(4-thiazolyl)pyridine Skeleton of a Macrocyclic Antibiotic, GE 2270 A
1998 · Kazuo Okumura, Hiroyuki Saito, et al. · Bulletin of the Chemical Society of Japan · 31
Useful Synthesis of 2,3,6-Polythiazolesubstituted Pyridine Skeleton [Fragment A-C] of Peptide Antibiotic, Micrococcin P
1996 · Kazuo Okumura, Masashi Shigekuni, et al. · Chemistry Letters · 31
Total Synthesis of a Macrocyclic Antibiotic, Micrococcin P
1999 · Kazuo Okumura, Yutaka Nakamura, et al. · Bulletin of the Chemical Society of Japan · 30
Total Synthesis of Antibiotic, Micrococcin P, from 2,3,6-Polythiazolesubstituted Pyridine Skeleton [Fragment A-C]
1998 · Chung-gi Shin, Kazuo Okumura, et al. · Chemistry Letters · 30
Mechanism of the Fujiwara Reaction: structural investigation of reaction products from benzotrichloride
1981 · Toyozo Uno, Kazuo Okumura, et al. · The Journal of Organic Chemistry · 28
Convenient Syntheses of Fragment B and Linear Main Skeleton [Fragment A-B-C’] Derivatives of an Antibiotic, GE 2270 A
2001 · Chung-gi Shin, Taishi Suzuki, et al. · Heterocycles · 24
Total Synthesis of a Macrocyclic Antibiotic, Micrococcin P1
1999 · Kazuo Okumura, Taishi Suzuki, et al. · Bulletin of the Chemical Society of Japan · 22
Practical Synthesis of Oxazoles Incorporated in α-Dehydroamino Acid and Dehydropeptide Structures
1993 · Chung-gi Shin, Yutaka Nakamura, et al. · Chemistry Letters · 17
Reactivity of exo- and endo-Tricyclo[3.2.1.02,4]octan-8-ylidenes and 7-Norbornenylidene
1974 · Shun-ichi Murahashi, Kazuo Okumura, et al. · Bulletin of the Chemical Society of Japan · 17
Useful Synthesis of the Main Dehydrohexapeptide Segment of a Macrocyclic Antibiotic, Berninamycin B
2001 · Takahiro Yamada, Kazuo Okumura, et al. · Chemistry Letters · 15
Convenient Synthesis of a 2,3,6-Tristhiazolylsubstituted Pyridine Skeleton [Fragment A-C] of a Macrocyclic Antibiotic, GE 2270 A
2000 · Chung-gi Shin, Kazuo Okumura, et al. · Heterocycles · 14
Synthesis of the Central Heterocyclic Skeleton of an Antibiotic, A10255
1997 · Kazuyuki Umemura, Shin Ikeda, et al. · Chemistry Letters · 14
Convenient Synthesis of a Central 2,3,6-Trisubstituted Pyridine Skeleton of a Macrobicyclic Antibiotic, Cyclothiazomycin
2001 · Akihiro Okabe, Akinori Ito, et al. · Chemistry Letters · 13
Convenient Synthesis of the Main Dehydrohexapeptide Skeleton Constituting a Macrocyclic Antibiotic, Berninamycin A
2002 · Hirohumi Saito, Takahiro Yamada, et al. · Chemistry Letters · 12
Dehydrooligopeptides. XIV. Syntheses of 2-[(Z)-1-Amino-1-alken-1-yl]oxazole-4-carboxylic Acid and the Main Common Skeleton of Thiostrepton Peptide Antibiotics, A10255G and J
1996 · Kazuo Okumura, Akio Ito, et al. · Bulletin of the Chemical Society of Japan · 11
A Convenient Synthesis of Methyl 2-[2-(1-Amino)ethenyl-bithiazolyl] thiazoline-4-carboxylate, an Important Skeleton of Cyclothiazomycin
1995 · Chung-gi Shin, Akio Ito, et al. · Chemistry Letters · 11
Phase-one Clinical Study on Ceftazidime
1983 · Masaru Koyama, Keiichi Nakagawa, et al. · 日本化学療法学会雑誌 · 9
Structure and reactivity of bicyclo[3.2.1]octa-2,6-dien-4-ylidene and bicyclo[3.2.1]oct-2-en-4-ylidene. Nucleophilicity of vinylcarbenes
1982 · Shunichi Murahashi, Kazuo Okumura, et al. · Journal of the American Chemical Society · 9
The fujiwara reaction: Isolation and structural investigation of the reaction product from chloroform.
1982 · TOYOZO UNO, KAZUO OKUMURA, et al. · Chemical and Pharmaceutical Bulletin · 9
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The reactions of exo- and endo-tricyclo[3,2,12,4]octan-8-ylidenes
1973 · Shun-Ichi Murahashi, Kazuo Okumura, et al. · Tetrahedron Letters · 8
Fluorimetric determination of chloroform in drinking water
1982 · Kazuo Okumura, Keiko Kawada, et al. · The Analyst · 7
Studies on Nilvadipine. II. Synthesis and Structure-Activity Relationships of 2-Hydroxymethyl- and 2-Cyano-1,4-dihydropyridines Containing Heteroatom-Substituted Ester at the 5-Position.
1992 · Yoshinari SATOH, Masaharu ICHIHASHI, et al. · Chemical and Pharmaceutical Bulletin · 6
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Works count: 54
Citation count: 547
H-index: 14
I10-index: 19
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