title: Cucurbitacin B and isocucurbitacin B: cytotoxic components of Helicteres isora.
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000032:analysis*; D014315:Triterpenes / Q000032:analysis*
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D014315:Triterpenes; C041246:cucurbitacin B; C041247:isocucurbitacin B