Abstract
Two new compounds 7-hydroxy-4'-methoxy-3'-(7''-hydroxy-3'',7''-dimethyl-octa-2'',5''-dienyl)-isoflavone (1) and 7-hydroxy-4'-methoxy-3'-(6''-hydroxy-3'',7''-dimethyl-octa-2'',7''-dienyl)-isoflavone (2), together with five known compounds (3–7), were isolated from EtOAc-soluble extract of the seeds of Psoralea corylifolia. Their structures were elucidated on the basis of detailed spectroscopic and physico-chemical analyses. All the isolates were evaluated for in vitro inhibitory activity against diacylglycerol acyltransferase (DGAT). And compounds 1–7 displayed significant inhibitory activity on DGAT1 with IC50 values ranging from 51.2 ± 1.1 to 116.4 ± 1.3 μM.
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