[Isolation and structure identification of a new isoflavone from Psoralea corylifolias].
OBJECTIVE
To study the chemical constituents of the fruits of Psoralea corylifolia L.


METHODS
The constituents were separated and purified by column chromatography with normal phase silica gel and polyamide. Their structures were identified on the basis of physical and spectral data (MS, NMR, HMBC and HMQC).


RESULTS
Six compounds were isolated and identified as psoralen (1), isopsoralen (2), bavachalcone (3), psoralidin (4), daidzin (5) and bavadin (6).


CONCLUSIONS
Compound 6 is a new compound. Compound 5 was isolated from this plant for the first time.
Yang
Tong-Tong
TT
Department of Resource Science of Chinese Medicines, China Pharmaceutical University, Nanjing 210038, China.
Qin
Min-Jian
MJ