title: Anomalous isolation of an active antitumor alkaloid from a fraction of Catharanthus lanceus devoid of anticancer activity.
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification* / Q000627:therapeutic use; D000818:Animals; D000970:Antineoplastic Agents / Q000302:isolation & purification* / Q000627:therapeutic use; D002845:Chromatography; D007942:Leukemia, Experimental / Q000188:drug therapy; D051379:Mice; D008811:Mice, Inbred DBA; D010936:Plant Extracts / Q000302:isolation & purification / Q000627:therapeutic use; D010944:Plants / Q000032:analysis*
chemical_list: D000470:Alkaloids; D000970:Antineoplastic Agents; D010936:Plant Extracts