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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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Communication | Regular issue | Vol 22, No. 8, 1984, pp.1673-1675
Published online, 1st January, 1970■ Antimicrobial Agents from Higher Plants. Erycristagallin, a New Pterocarpene from the Roots of the Bolivian Coral Tree, Erythrina crista-galli
Published online, 1st January, 1970
DOI: 10.3987/R-1984-08-1673
■ Antimicrobial Agents from Higher Plants. Erycristagallin, a New Pterocarpene from the Roots of the Bolivian Coral Tree, Erythrina crista-galli
Lester A. Mitscher,* Jeffrey A. Ward, Steven Drake, and Gollapudi S. Rao
*Department of Medicinal Chemistry, University of Kansas, 4070 Malott Hall, Lawrence, Kansas 66045-2506, U.S.A.
Abstract
Bioassay directed fractionation of extracts of the roots of Erythrina cristagalli produced the new pterocarpene, erycristagallin (1) as the main antimicrobial constituent. Structural assignment is based upon degradation and spectroscopic studies.
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