Study on the Chemical Constituents of Clerodendrum japonicum,a Zhuang Medicine

摘要

[Objectives]To make a preliminary study on the chemical constituents of Clerodendrum japonicum,a Zhuang medicine,so as to provide theoretical support and scientific basis for exploring its medicinal value and comprehensive development and utilization.[Methods]The compounds were separated by macroporous adsorption resin,silica gel,Sephadex LH-20,ODS chromatographic column and preparative high performance liquid chromatography,and their structures were identified by NMR and MS data.[Results]8 compounds were isolated and identified from Clerodendrum japonicum extract with 80%ethanol solution:(1)fumaric acid,(2)trans-p-hydroxycinnamic acid,(3)cis-p-hydroxycinnamic acid,(4)ethyl caffeate,(5)acteoside,(6)kaempferol,(7)apigenin-7-O-β-D-glucopyranoside,(8)caffeic acid.[Conclusions]8 compounds were isolated and purified from the ethanol extract of Clerodendrum japonicum.