Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5166494 | Phytochemistry | 2009 | 5 Pages |
Abstract
Four tetracyclic oxindole alkaloids, 7(R)- and 7(S)-geissoschizol oxindole (1 and 2), 7(R),16(R)- and 7(S),16(R)-19(E)-isositsirikine oxindole (3 and 4), in addition to a taberpsychine derivative, N(4)-demethyltaberpsychine (5), were isolated from the Malayan Tabernaemontana corymbosa and the structures were established using NMR and MS analysis.
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Authors
Kuan-Hon Lim, Kooi-Mow Sim, Guan-Huat Tan, Toh-Seok Kam,