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Takashi Shiroi

Okayama University

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Publication

Featured researches published by Takashi Shiroi.

Tetrahedron Letters | 1990

Deprotection of carboxylic esters assisted by hydrogen bonding network in phenolic media. Its application to β-lactam antibiotic syntheses

Hideo Tanaka; Masatoshi Taniguchi; Yutaka Kameyama; Sigeru Torii; Michio Sasaoka; Takashi Shiroi; Ryo Kikuchi; Ichiro Kawahara; Akihiro Shimabayashi; Sigemitsu Nagao

Deprotection of p-methoxybenzyl, diphenylmethyl, and tert-butyl ester groups, which is an essential step of β-lactam antibiotic synthesis, can be performed successfully by gentle heating in phenolic media.

Archive | 1995

β-lactam and cephem compounds and processes for their production

Shigeru Torii; Hideo Tanaka; Mitio Sasaoka; Takashi Shiroi; Yutaka Kameyama

Archive | 1992

PROCESS FOR PREPARING CEPHEM DERIVATIVES

Sigeru Torii; Hideo Tanaka; Masatoshi Taniguchi; Michio Sasaoka; Takashi Shiroi; Yutaka Kameyama

Journal of Organic Chemistry | 1991

Deprotection of carboxylic esters of β-lactam homologues. Cleavage of p-methoxybenzyl, diphenylmethyl, and tert-butyl esters effected by a phenolic matrix

Sigeru Torii; Hideo Tanaka; Masatoshi Taniguchi; Yutaka Kameyama; Michio Sasaoka; Takashi Shiroi; Ryo Kikuchi; Ichiro Kawahara; Akihiro Shimabayashi; Shigemitsu Nagao

Archive | 1987

Azetidinone derivatives and process for the preparation of the same

Sigeru Torii; Kenji Uneyama; Hideo Tanaka; Junzo Nokami; Michio Sasaoka; Norio Saito; Takashi Shiroi

Synlett | 1991

A New Short Cut Route to 3-Norcephalosporins1

Hideo Tanaka; Yutaka Kameyama; Shin-ichi Sumida; Takae Yamada; Yoshihisa Tokumaru; Takashi Shiroi; Michio Sasaoka; Masatoshi Taniguchi; Sigeru Torii

Archive | 1986

4-thio azetidinone intermediates and process for the preparation of the same

Sigeru Torii; Kenji Uneyama; Hideo Tanaka; Junzo Nokami; Michio Sasaoka; Norio Saito; Takashi Shiroi

Archive | 1991

PRODUCTION OF CEPHEM DERIVATIVE

Yutaka Kameyama; Michio Sasaoka; Takashi Shiroi; Hideo Tanaka; Masatoshi Taniguchi; Shigeru Torii

Archive | 1984

Thiazolinoazetidinone derivatives and process for the preparation of the same

Sigeru Torii; Hideo Tanaka; Junzo Nokami; Michio Sasaoka; Norio Saito; Takashi Shiroi; Akira Tanaka

Bulletin of the Chemical Society of Japan | 1995

Synthesis of 3-Hydroxycephems from Penicillin G through Cyclization of Chlorinated 4-(Phenylsulfonylthio)-2-azetidinones Promoted by a BiCl3/Sn or TiCl4/Sn Bimetal Redox System.

Hideo Tanaka; Masatoshi Taniguchi; Yutaka Kameyama; Marc Monnin; Sigeru Torii; Michio Sasaoka; Takashi Shiroi; Shigemitsu Nagao; Takae Yamada; Yoshihisa Tokumaru

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Hideo Tanaka

Chiba University

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Michio Sasaoka

Okayama University

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Sigeru Torii

Okayama University

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Yutaka Kameyama

Okayama University

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Norio Saito

Okayama University

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Masatoshi Taniguchi

Okayama University

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Shigeru Torii

Okayama University

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Junzo Nokami

Okayama University of Science

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Ryo Kikuchi

Okayama University

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Shigemitsu Nagao

Hokkaido University

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