Seco-tabersonine alkaloids from Tabernaemontana corymbosa.
Two seco-tabersonine alkaloids, jerantiphyllines A and B, in addition to a tabersonine hydroxyindolenine, jerantinine H, and a recently reported vincamine alkaloid 7, were isolated from the leaf extract of the Malayan Tabernaemontana corymbosa and the structures were established using NMR and MS analysis. Biomimetic conversion of jerantinines A and E to their respective vincamine and 16-epivincamine derivatives were also carried out.
Lim
Kuan-Hon
KH
Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Thomas
Noel F
NF
Abdullah
Zanariah
Z
Kam
Toh-Seok
TS
D026121:Indole Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D011804:Quinolines / Q000737:chemistry* / Q000302:isolation & purification; D030014:Tabernaemontana / Q000737:chemistry*
D026121:Indole Alkaloids; D010936:Plant Extracts; D011804:Quinolines; C009373:tabersonine