title: Lumusidines A-D and villalstonidine F, macroline-macroline and macroline-pleiocarpamine bisindole alkaloids from Alstonia macrophylla.
abstract: 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.
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Siew-Huah
authors.initials: SH
authors.lastname: Lim
authors.forename: Yun-Yee
authors.initials: YY
authors.lastname: Low
authors.forename: G
authors.initials: G
authors.lastname: Subramaniam
authors.forename: Zanariah
authors.initials: Z
authors.lastname: Abdullah
authors.forename: Noel F
authors.initials: NF
authors.lastname: Thomas
authors.forename: Toh-Seok
authors.initials: TS
authors.lastname: Kam
mesh_terms: D000470:Alkaloids / Q000737:chemistry*; D031051:Alstonia / Q000737:chemistry*; D026121:Indole Alkaloids / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D000078183:Oxindoles; D010936:Plant Extracts / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D000470:Alkaloids; D026121:Indole Alkaloids; D000078183:Oxindoles; D010936:Plant Extracts; C512190:macroline; C114765:pleiocarpamine