Conodurine, conoduramine, and ervahanine derivatives from Tabernaemontana corymbosa.
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.
Kam
Toh-Seok
TS
Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia. tskam@um.edu.my
Sim
Kooi-Mow
KM
D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D001952:Bridged-Ring Compounds / Q000737:chemistry / Q000302:isolation & purification; D026121:Indole Alkaloids / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D030014:Tabernaemontana / Q000737:chemistry*
D000470:Alkaloids; D001952:Bridged-Ring Compounds; D026121:Indole Alkaloids; C477211:conodurine; C477210:ervahanine; C091978:conoduramine