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Communication | Regular issue | Vol 16, No. 7, 1981, pp.1125-1131
Published online, 1st January, 1970
DOI: 10.3987/R-1981-07-1125
A New Synthetic Route to the Corynanthe Type Indole Alkaloids Using (±)-Norcamphor

Seiichi Takano,* Kimiyuki, Shibuya, Mikoto Takahashi, Susumi Hatakeyama, and Kunio Ogasawara

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan

Abstract

Conversion of (±)-norcamphor (5) into a number of the corynanthe alkaloids in racemic forms has been achieved. The conversion allows a formation of the 18,19-saturated alkaloids with all four possible configurations and the Δ18,19-unsaturated alkaloids with three of four possible configurations.