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Lumusidines A−D and villalstonidine F, macroline–macroline and macroline–pleiocarpamine bisindole alkaloids from Alstonia macrophylla
- Lim, Siew-Huah, Low, Yun-Yee, Subramaniam, G., Abdullah, Zanariah, Thomas, Noel F., Kam, Toh-Seok
- Phytochemistry 2013 v.87 pp. 148-156
- Alstonia macrophylla, X-ray diffraction, alkaloids, nuclear magnetic resonance spectroscopy
- Lumusidines A–D, bisindole alkaloids of the macroline–macroline type, and one of the macroline–pleiocarpamine type, villalstonidine F, were isolated from the stem-bark extract of Alstonia macrophylla (Apocynaceae). The structures and absolute configurations of these alkaloids were established using NMR, MS, and X-ray diffraction analyses.