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  • Title: Macroline-sarpagine and macroline-pleiocarpamine bisindole alkaloids from Alstonia angustifolia.
    Author: Tan SJ, Lim KH, Subramaniam G, Kam TS.
    Journal: Phytochemistry; 2013 Jan; 85():194-202. PubMed ID: 22995929.
    Abstract:
    Nine bisindole alkaloids, comprising four belonging to the macroline-sarpagine group, and five belonging to the macroline-pleiocarpamine group, were isolated from the stem-bark extracts of Alstonia angustifolia (Apocynacea). Their structures were established using NMR and MS analyses.
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