HETEROCYCLES
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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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Note | Regular issue | Vol 53, No. 10, 2000, pp.2279-2283
Published online, 1st January, 1970■ Royleinine, a New Norditerpenoid Alkaloid from Delphinium roylei
Published online, 1st January, 1970
DOI: 10.3987/COM-00-9010
■ Royleinine, a New Norditerpenoid Alkaloid from Delphinium roylei
Ayhan Ulubelen,* Ali H. Meriçli, Filiz Meriçli, Ufuk Kolak, Muhammed Arfan, Manzoor Ahmad, and Habib Ahmad
*Faculty of Pharmacy, University of Istanbul, 34452 Istanbul, Turkey
Abstract
A new norditerpenoid alkaloid, royleinine (1) has been isolated from the aerial parts of Delphinium roylei Munz, along with three more norditerpenoid alkaloids, isotalitazidine, condelphine and senbusine-C. The structure of 1 has been established on the basis of its spectroscopic data (IR, HRMS, 1H, 13C, 1H - 1H and 1H - 13C COSY and NOESY spectra).
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