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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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Communication | Regular issue | Vol 19, No. 7, 1982, pp.1223-1225
Published online, 1st January, 1970■ A Synthesis of Withasomnine from 4-Phenylpyrazole
Published online, 1st January, 1970
DOI: 10.3987/R-1982-07-1223
■ A Synthesis of Withasomnine from 4-Phenylpyrazole
Seiichi Takano, Yoko Imamura, and Kunio Ogasawara
*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan
Abstract
Withasomnine(5), a pyrazole alkaloid isolated from Withania somnifera Dun.(Solanaceae), has been synthesized from 4-phenylpyrazole(1), a compound with potential symmetry.
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