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Furocoumarins from the rhizomes of Dorstenia brasiliensis

1994; Elsevier BV; Volume: 36; Issue: 1 Linguagem: Inglês

10.1016/s0031-9422(00)97041-9

1873-3700

Ricardo Machado Kuster, Róbson Roney Bernardo, Antônio Jorge Ribeiro da Silva, José Paz Parente, Walter B. Mors,

Synthesis and Biological Activity

A monoterpenoid substituted furocoumarin, 5-[3-(4,5-dihydro-5,5-dimethyl-4-oxo-2-furanyl)butoxy]-7H-furo[3-2-g][1]benzopyran-7-one, was isolated from the rhizomes of Dorstenia brasiliensis Lam. along with psoralen, bergapten, sitosterol, stigmasterol, 3-O-β-glucosylsitosterol and sucrose. Traces of a new unsaturated analogue, 5-[[3-(4,5-dihydro-5,5-dimethyl-4-oxo-2-furanyl-2-butenyl-] oxy]-7H-furo[3-2-g][1]benzopyran-7-one, were identified by mass spectrometry.