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ID: ALA4414629
Journal: J Nat Prod
Title: Macroline-Sarpagine Bisindole Alkaloids with Antiproliferative Activity from Alstonia penangiana.
Authors: Yeap JS, Saad HM, Tan CH, Sim KS, Lim SH, Low YY, Kam TS.
Abstract: A methanol extract of the stem bark of the Malayan Alstonia penangiana provided seven new bisindole alkaloids, comprising six macroline-sarpagine alkaloids (angustilongines E-K, 1-6) and one macroline-pleiocarpamine bisindole alkaloid (angustilongine L, 7). Analysis of the spectroscopic data (NMR and MS) of these compounds led to the proposed structures of these alkaloids. The macroline-sarpagine alkaloids (1-6) showed in vitro growth inhibitory activity against a panel of human cancer cell lines, inclusive of KB, vincristine-resistant KB, PC-3, LNCaP, MCF7, MDA-MB-231, HT-29, HCT 116, and A549 cells (IC50 values: 0.02-9.0 μM).
CiteXplore: 31642315