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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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Paper | Special issue | Vol 40, No. 1, 1995, pp.301-310
Published online, 1st January, 1970■ Chiral Synthesis of a Pyrrolizidine Alkaloid, (-)-Heliotridane
Published online, 1st January, 1970
DOI: 10.3987/COM-94-S31
■ Chiral Synthesis of a Pyrrolizidine Alkaloid, (-)-Heliotridane
Toshio Honda, Shin-ichi Yamane, Koichi Naito, and Yukio Suzuki
*Institute of Medicinal Chemistry, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
Abstract
Chiral synthesis of the necic base, heliotridane has been achieved by employing a samarium diiodide-promoted regioselective carbon-carbon bond cleavage reaction of the γ-halo ester (17), as a key step.
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