title: Alkaloids of Tylophora species from Sri Lanka.
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D055598:Chemical Phenomena; D002621:Chemistry; D007546:Isoquinolines / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000032:analysis*; D011758:Pyrroles / Q000302:isolation & purification*
chemical_list: D000470:Alkaloids; D007546:Isoquinolines; D011758:Pyrroles