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Obituary
Zenichi Yoshida (1925-2023)
Zenichi Yoshida (1925-2023)
Professor. Zenichi Yoshida,
a member of the Honorary Advisors of HETEROCYCLES (1975-1998),
has passed away on May 4, 2023 at the age of 97.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
May 11, 2023
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Paper | Regular issue | Vol 31, No. 3, 1990, pp.529-536
Published online, 1st January, 1970■ Synthesis of (S)-3-Carbobenzoxyamino-1-amino-2-azetidinones
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5279
■ Synthesis of (S)-3-Carbobenzoxyamino-1-amino-2-azetidinones
Hisao Iwagami* and Naohiko Yasuda
*Central Research Laboratories, Ajinomoto Co., Inc., 1-1, Suzuki-cho, Kawasaki-ku, Kawasaki, Kanagawa 210-0801, Japan
Abstract
Cyclization of amio acid hydrazide afforded a new class of heteroatom activated β-lactam. These compounds are potent parent nuclei which possess significant biological activity.
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