A DIMERIC GERMACRANOLIDE AND OTHER SESQUITERPENE LACTONES FROM MIKANIA SPECIES

Article abstract of DOI:10.1016/0031-9422(82)80140-4

The investigation of two Mikania species, both previously placed in the genus Kanimia, afforded in addition to known compounds several new germacranolides, one being a dimeric lactone, and a new eudesmanolide.Furthermore, two geranyl geraniol derivatives were isolated.The structures were elucidated by spectroscopic methods and a few chemical transformations.The chemotaxonomy is discussed briefly. - Key Word Index: Mikania goyazensis; M. pohlii; Compositae; sesquiterpene lactones; germacranolides; eudesmanolides; dimeric germacranolide; geranyl geraniol derivatives.