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Shigemitsu Nagao

Hokkaido University

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Publication

Featured researches published by Shigemitsu Nagao.

Tetrahedron Letters | 1979

Structures of moracins E, F, G, and H, new phytoalexins from diseased mulberry

Mitsuo Takasugi; Shigemitsu Nagao; Tadashi Masamune; Akira Shirata; Kokichi Takahashi

Abstract The structures and antifungal activity of four new mulberry phytoalexins, designated as moracins E, F, G, and H, are described.

Tetrahedron Letters | 1981

Confirmation of the structures of kuwanons G and H (albanins F and G) by partial synthesis

Taro Nomura; Toshio Fukai; Toshiharu Narita; Surnio Terada; Jun Uzawa; Yoichi Iitaka; Mitsuo Takasugi; Shin-ichi Ishikawa; Shigemitsu Nagao; Tadashi Masamune

Abstract Conclusive evidence is presented supporting structures 1 and 2 for two natural Diels-Alder adducts isolated from mulberry and designated as kuwanon G (albanin F, moracenin B) and Kuwanon H (albanin G, Moracenin A).

Chemistry Letters | 1978

MORACIN C AND D, NEW PHYTOALEXINS FROM DISEASED MULBERRY

Mitsuo Takasugi; Shigemitsu Nagao; Shoji Ueno; Tadashi Masamune; Akira Shirata; Kokichi Takahashi

Tetrahedron Letters | 1978

Structure of Moracin A and B, new phytoalexins from diseased mulberry

Mitsuo Takasugi; Shigemitsu Nagao; Tadashi Masamune; Akira Shirata; Kokichi Takahashi

Chemistry Letters | 1980

CHALCOMORACIN, A NATURAL DIELS–ALDER ADDUCT FROM DISEASED MULBERRY

Mitsuo Takasugi; Shigemitsu Nagao; Tadashi Masamune; Akira Shirata; Kokichi Takahashi

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

Chemistry Letters | 1984

Eight minor phytoalexins from diseased paper mulberry.

Mitsuo Takasugi; Nobuyuki Niino; Shigemitsu Nagao; Masaki Anetai; Tadashi Masamune; Akira Shirata; Kokichi Takahashi

Chemistry Letters | 1980

THE CO-OCCURRENCE OF FLAVAN AND 1,3-DIPHENYLPROPANE DERIVATIVES IN WOUNDED PAPER MULBERRY

Mitsuo Takasugi; Yoshikazu Kumagai; Shigemitsu Nagao; Tadashi Masamune; Akira Shirata; Kokichi Takahashi

Archive | 1984

Process for preparing azetidinone derivatives

Sigeru Torii; Hideo Tanaka; Yuzuru Ogata; Michio Sasaoka; Norio Saito; Shigemitsu Nagao

Archive | 1986

PROCESS FOR PRODUCING BETA-LACTAM DERIVATIVES

Michio Sasaoka; Norio Saito; Takashi Shiroi; Shigemitsu Nagao; Ryo Kikuchi; Yutaka Kameyama

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Michio Sasaoka

Okayama University

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Mitsuo Takasugi

Hokkaido University

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Hideo Tanaka

Chiba University

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Sigeru Torii

Okayama University

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Tadashi Masamune

Hokkaido University

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Takashi Shiroi

Okayama University

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Akira Shirata

Hokkaido University

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Yutaka Kameyama

Okayama University

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Kokichi Takahashi

Kumamoto University

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Norio Saito

Okayama University

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