Synthetic Sutdies on the Picraline-Type Indole Alkaloids-I : Improved Synthesis of C-Mavacurine-Type Compounds and a New Skeletal Rearrangement in a Corynanthe-Type Derivative

Takeshi KOIKE; Hiromitsu TAKAYAMA; Shin-ichiro SAKAI

doi:10.1248/cpb.39.1677

Takeshi KOIKE, Hiromitsu TAKAYAMA, Shin-ichiro SAKAI

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Keywords: indole akaloid, hirsutine, corynanthe type, picraline type, C-mavacurine type, chemical transformation, skeletal rearrangement

JOURNAL FREE ACCESS

1991 Volume 39 Issue 7 Pages 1677-1681

DOI https://doi.org/10.1248/cpb.39.1677

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Abstract

An efficent synthesis of the C/D ring-cleaved compounds (13S and 13R) from hirsutine (7) and their transformation into three different type of products, 8 (C-mavacurine type), 18 (isopleicarpamine type), and 22 are described

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