A new dimeric coumarin from Boenninghausenia albiflora Reichb and Meissner (Rutaceae)

摘要

A new dimeric coumarin, Boennin, has been isolated from Boenninghausenia albiflora Reichb & Meissner. The structure of the compound as 1 has been established from spectral and correlation studies. The occurrence of two other minor coumarins, gravelliferone and luvangetin, has also been observed for the first time from this plant.