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Conodurine, conoduramine, and ervahanine derivatives from Tabernaemontana corymbosa
1Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia. tskam@um.edu.my
Phytochemistry
|June 18, 2003
Abstract:
Four bisindole alkaloids, viz., 19'(S)-hydroxyconodurine, conodurinine, 19'(S)-hydroxyconoduramine, and 19'(S)-hydroxyervahanine A, in addition to conodurine and ervahanine A, were obtained from the leaf and stem-bark extracts of Tabernaemontana corymbosa. The structures of the new alkaloids were determined using NMR and MS analysis.