title: Catharanthus alkaloids. 18. Isolation of hörhammerinine, a new alkaloid from C. lanceus (Apocynaceae).
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D002626:Chemistry, Pharmaceutical; D002845:Chromatography; D007259:Infrared Rays; D010946:Plants, Medicinal / Q000032:analysis*; D013057:Spectrum Analysis; D015016:Yohimbine / Q000302:isolation & purification
chemical_list: D000470:Alkaloids; D015016:Yohimbine