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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 16, No. 11, 1981, pp.1937-1946
Published online, 1st January, 1970■ Studies on the Syntheses of Heterocyclic and Natural Compounds. Part 949. A Total Synthesis of (±)-Corynantheidol
Published online, 1st January, 1970
DOI: 10.3987/R-1981-11-1937
■ Studies on the Syntheses of Heterocyclic and Natural Compounds. Part 949. A Total Synthesis of (±)-Corynantheidol
Tetsuji Kametani,* Naoaki Kanaya, Toshio Honda, and Masataka Ihara
*Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
Abstract
A facile synthesis of (±)-corynantheidol (17) has been achieved by the application of enamine annelation using 3,4-dihydro-1-methyl-β-carboline (5) and dimethyl 3-methoxyallylidenemalonate (6). Stereochemical assignment for catalytic hydrogenation products of the corresponding enamides has also been investigated.
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