Two new phenolic diarylheptanoids, ydroxy-7-(4-hydroxyphenyl)-1-phenyl
-(1E)-1-heptene and ihydroxyphenyl)-5-hydroxy-1-phenyl-(1E)-1-heptene,
were isolated from the rhizomes of Curcuma xanthorrhiza. The two comp
ounds exhibited significant hypolipidemic action by inhibiting hepatic
triglyceride secretion.