赬桐的化学成分

CHEMICAL CONSTITUENTS FROM CLERODENDRUM JAPONICUM

应用正反相硅胶柱层析、中压柱层析、制备性薄层层析等手段，从桐（Ｃｌｅｒｏｄｅｎｄｒｕｍｊａｐｏｎｉｃｕｍ）中分离得到４个苯丙素甙类成分，根据光谱数据及化学方法，鉴定为马蒂罗甙（１），单乙酰马蒂罗甙（２），贞桐甙Ａ（４）以及阿克甙（３），其中，贞桐甙Ａ是一新化合物。同时还得到２２，２３一二氢菠甾醇、豆甾醇、２５，２６一去氢豆甾醇，乌索酸，丁二酸酐和小麦黄素等。

By means of silica gel and reversed phase silica gel CC, medium pressure CC,as well as preparative TLC, four phenylpropanoid glycosides were isolated from C.japonicum .According to spectral data and chemical methods, they were deteimined as martinoside(1),monoacetyl martinoside(2),acteoside(3) and clerodenoside A(4).Among them,clerodenoside A was a new compound,which was identified as[β-(3′一hydroxy一4′一methoxyphenyl)一ethyl]一2″,3″一di一O一acetyl一3一O一α一L-rhamnopyranosyl)一(4一O一feruloyl)-β一D一glucopyranosi de(4). In addition,22,23一dihydrospinasterol, stigmasterol, 25,26一dehydrostigmasterol, ursolic acid,succinic anhydride and tricin were obtained.