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Eiji Ohki

University of Tokyo

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Publication

Featured researches published by Eiji Ohki.

Tetrahedron Letters | 1980

7-Oxo-2-thia-1-azabicyclo[3.2.0]hept-3-ene, a revised structure for penems synthesized via oxidative addition mediated by copper(I)

Sadao Oida; Akira Yoshida; Teruo Hayashi; Eiji Nakayama; Sadao Sato; Eiji Ohki

Abstract The structure for the fused β-lactam obtained by treatment of the secolactam 3 with base in the presence of Cu(I)-ion is not the penem 1 (R=CH 3 ), but the isopenem 4 on the basis of X-ray analysis.

Chemical & Pharmaceutical Bulletin | 1959

Untersuchungen uber Steroide. XIV. Reduktion von Reichsteins Substanz S mittels Zink in Essigsaure.

Kyosuke Tsuda; Eiji Ohki; Junnosuke Suzuki

Beobachtungen bei der Reduktion von Reichsteins Substanz S (I) mittels Zink werden beschrieben. Hierbei konnen Cortexon (II), 17-Isocortexon (III) und 17-Isoprogesteron (IV) entstehen. Diese Ergebnisse werden diskutiert.

Chemical & Pharmaceutical Bulletin | 1978

Deoxysugar Synthesis. IV. Deoxygenation of Aminoglycoside Antibiotics through Reduction of Their Dithiocarbonates

Teruo Hayashi; Teiki Iwaoka; Noriko Takeda; Eiji Ohki

Chemical & Pharmaceutical Bulletin | 1981

2-(Alkylthio) penem-3-carboxylic Acids. IV. Synthesis of (Hydroxyethyl)-azetidinone Precursors to 1-Thia Analogs of Thienamycin

Akira Yoshida; Teruo Hayashi; Noriko Takeda; Sadao Oida; Eiji Ohki

Chemical & Pharmaceutical Bulletin | 1983

New synthesis of penems via a reductive cyclization reaction of oxalimides with trialkyl phosphite.

Akira Yoshida; Teruo Hayashi; Noriko Takeda; Sadao Oida; Eiji Ohki

Chemical & Pharmaceutical Bulletin | 1968

5, 6-Epimino-D-glucofuranose and Synthesis of Nojirimycin (5-Amino-5-deoxyglucose)

Hiromichi Saeki; Eiji Ohki

Chemical & Pharmaceutical Bulletin | 1970

Synthesis of N-Acetyllincosamine

Hiromichi Saeki; Eiji Ohki

Chemical & Pharmaceutical Bulletin | 1967

Chemical Studies on Azalomycins. I. Preliminary Study on Azalomycin-B.

Shuji Takahashi; Mamoru Arai; Eiji Ohki

Chemical & Pharmaceutical Bulletin | 1967

Chemical studies on azalomycins. II. Sugar component of azalomycin-B.

Shuji Takahashi; Masaaki Kurabayashi; Eiji Ohki

Chemical & Pharmaceutical Bulletin | 1981

2-(Alkylthio)penem-3-carboxylic acids. V. Synthesis and antibacterial activities of "1-Thiathienamycin" and related compounds.

Teruo Hayashi; Akira Yoshida; Noriko Takeda; Sadao Oida; Shinichi Sugawara; Eiji Ohki

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Akira Yoshida

University of Tokyo

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Teruo Hayashi

University of Tsukuba

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Sadao Oida

Tohoku University

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Kyosuke Tsuda

University of Tokyo

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Toshinobu Asai

University of Tokyo

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Muneaki Takase

Hokkaido University

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Atsuji Tanaka

University of Tokyo

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Bunji Shimizu

University of Tokyo

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Chihiro Tamura

University of Tokyo

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Junnosuke Suzuki

University of Tokyo

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