Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
CHEMICAL CONVERSION OF GARDNERINE INTO KOUMIDINE BY INVERTING THE ETHYLIDENE SIDE CHAIN WITH PALLADIUM CATALYST
Hiromitsu TAKAYAMA, Shin-ichiro SAKAI
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Keywords: Gelsemium alkaloid, koumidine, 19-(E)-koumidine, gardnerine, chemical conversion, olefin inversion, palladium catalyst
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1989 Volume 37 Issue 8 Pages 2256-2257

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Abstract
A minor Gelsemium alkaloid, koumidine (1), was synthesized from gardnerine (2) by the demethoxylating the indole ring and the inverting the configuration of the ethylidene side chain with palladium catalyst.
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© The Pharmaceutical Society of Japan
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