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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 55, No. 12, 2001, pp.2341-2347
Published online, 1st January, 1970■ Three New Isoflavonoids from Erythrina variegata
Published online, 1st January, 1970
DOI: 10.3987/COM-01-9346
■ Three New Isoflavonoids from Erythrina variegata
Hitoshi Tanaka,* Miyuki Hirata, Hideo Etoh, Naoharu Watanabe, Hiroshi Shimizu,
Mansoor Ahmad, Zahid Khan, and Munir Anwar
*Faculty of Pharmacy, Meijo University, 150 Yagoto, Tempaku-ku, Nagoya, Aichi 468-8503, Japan
Abstract
Three new isoflavonoids, eryvarins C-E, together with fourteen known compounds were isolated from the roots of Erythrina variegata (Leguminosae) and their structures were elucidated on the basis of spectroscopic evidence
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