New constituents from Psoralea corylifolia

Two new metabolites, named psoralestcr 1 and psorachromene 2, a trans isomer of bavachromcne together with five known compounds have been isolated from the seeds of Psoralea corylifolia L. and characterized on the basis of their detailed NMR and mass spectral data. Psoralester possess a ten- membered lactone moicty and a long chain ester.