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Communication | Regular issue | Vol 22, No. 12, 1984, pp.2719-2722
Published online, 1st January, 1970
DOI: 10.3987/R-1984-12-2719
Total Synthesis of (±)-19,20-Dehydroyohimbines

Okiko Miyata, Yumiko Hirata, Takeaki Naito, and Ichiya Ninomiya*

*Kobe Women’s College of Pharmacy, Motoyamakita, Higashinad, Kobe, Hyogo 658, Japan


The first total synthesis of three (±)-19,20-dehydroyohimbines (4), (5), and (6) was achieved according to the route involving regioselective acylation of 18,19-dehydroalloyohimbone (1) followed by selective migration of a double bond from the conjugated position to the unconjugated 19-20 position.