FURTHER 5-METHYL COUMARINS AND OTHER CONSTITUENTS FROM THE SUBTRIBE MUTISINAE

Article abstract of DOI:10.1016/S0031-9422(00)85512-0

Key Word Index-Mutisia spinosa, M. retorsa; Trichocline sinuata; Brachyclados megalanthus; Compositae; chemotaxonomy; 5-methyl coumarins; monoterpenes; geraniol and linalol derivatives; C₁₄-acetylenic compound.The investigation of four species from the subtribe Mutisiinae afforded eight new monoterpenes, seven 5-methyl coumarins, two closely related 5-methyl chromones, two coumarane derivatives, a p-hydroxy acetophenone derivative and a new C₁₄-acetylene.The structures were elucidated by spectroscopic methods and a few chemical transformations.The chemotaxonomy of the Mutisiinae is discussed.