Abstract: 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 determined as martinoside (1), monoacetyl martinoside (2), acteoside (3) and clerodenoside A (4).

Key words: Clerodendrum japonicum

摘要： 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，从祯桐(Clerodendrum japonicum)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(l)，单乙酰马蒂罗甙(2)，贞桐甙A(4)以及阿克甙(3)，其中，桐甙A是一新化合物。同时还得到22，23-二氢菠甾醇、豆甾醇、25，26-去氢豆甾醇，乌索酸，丁二酸酐和小麦黄素等。

关键词: 桐, 马鞭草科, 苯丙素甙, 贞桐甙A