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Dive into the research topics where Isao Hayakawa is active.

Publication


Featured researches published by Isao Hayakawa.


Chemical & Pharmaceutical Bulletin | 1984

Synthesis and Antibacterial Activities of Substituted 7-Oxo-2, 3-dihydro-7H-pyrido [1, 2, 3-de] [1, 4] benzoxazine-6-carboxylic Acids

Isao Hayakawa; Tokiyuki Hiramitsu; Yoshiaki Tanaka


Chemical & Pharmaceutical Bulletin | 1987

Synthesis and Antibacterial Activities of Optically Active Ofloxacin and Its Fluoromethyl Derivative

Shohgo Atarashi; Shuichi Yokohama; Kenichi Yamazaki; Katsu-Ichi Sakano; Masazumi Imamura; Isao Hayakawa


Archive | 1981

1,8-CYCLIC SUBSTITUTED QUINOLINE DERIVATIVE

Isao Hayakawa; Tokiyuki Hiramitsu; Yoshiaki Tanaka


Chemical & Pharmaceutical Bulletin | 1984

Synthesis of antimicrobial agents. VI. Studies on the synthesis of furo[3,2-b][1,8]naphthyridine derivatives.

Isao Hayakawa; Norio Suzuki; Kazunori Suzuki; Yoshiaki Tanaka


Chemical & Pharmaceutical Bulletin | 1975

Chemical Conversion of Kobusine : Cleavage of the Bridged C-C Bond by a Novel Fragmentation Reaction

Takashi Yatsunami; Takashi Isono; Isao Hayakawa; Toshihiko Okamoto


Chemical & Pharmaceutical Bulletin | 1984

Synthesis of Antimicrobial Agents. VII. Synthesis and Antibacterial Activities of Furo [2,3-g] quinoline Derivatives

Yoshiaki Tanaka; Norio Suzuki; Isao Hayakawa; Kazunori Suzuki


Archive | 1983

Pyridobenzoxazine derivatives useful as antibacterial agents

Isao Hayakawa; Yoshiaki Tanaka


Archive | 1981

8-aminopyrido(1,2,3-de)(1,4)banzoxazine derivative

Isao Hayakawa; Yoshiaki Tanaka


Archive | 1980

PYRIDO(1,2,3-DE)(1,4)BENZOXAZINECARBOXYLIC ACID DERIVATIVE

Isao Hayakawa; Tokiyuki Hiramitsu; Yoshiaki Tanaka


Archive | 1981

Pyridobenzoxazinecarboxylic acid derivative

Isao Hayakawa; Yoshiaki Tanaka

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