title: Constituents of Michelia champaca and Lewis acid catalysed transformations of parthenolide into guaianolides.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D007783:Lactones / Q000032:analysis; D010946:Plants, Medicinal / Q000032:analysis*; D012717:Sesquiterpenes / Q000032:analysis*
chemical_list: D007783:Lactones; D012717:Sesquiterpenes; C002669:parthenolide