title: Catharanthus alkaloids XXXIII. 21'Oxo-leurosine from Catharanthus roseus (apocynaceae).
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000302:isolation & purification*; D055598:Chemical Phenomena; D002621:Chemistry; D066298:In Vitro Techniques; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D009374:Neoplasms, Experimental / Q000188:drug therapy; D010946:Plants, Medicinal / Q000032:analysis*; D014748:Vinca Alkaloids / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: C026089:21'-oxoleurosine; D000972:Antineoplastic Agents, Phytogenic; D014748:Vinca Alkaloids