目的 研究柔茎香茶菜Rabdosia flexicaulis的化学成分.方法 采用多种柱色谱法进行分离纯化,并经波谱分析鉴定化合物的结构.结果 从柔茎香茶菜地上部分70%丙酮提取物的醋酸乙酯萃取部位中共分离得到了15个化合物,其中7个萜类化合物,分别鉴定为铁冬青酸(1)、委陵菜酸(2)、科罗索酸(3)、23-羟基-熊果酸(4)、山楂酸(5)、teuclatriol(6)、3,6-二羟基-1-薄荷烯(7);8个苯丙素类化合物,分别鉴定为1-羟基-松脂醇(8)、表松脂酚(9)、落叶松树脂醇(10)、咖啡酸(11)、迷迭香酸(12)、3'-O-甲基-迷迭香酸(13)、4'-O-甲基-迷迭香酸甲酯(14)、3-去羟基迷迭香酸甲酯(15).结论 所有化合物均为首次从该种植物中分离得到,其中化合物1、6、7、9、13和14为首次从香茶菜属植物中分得.

Objective To investigate the chemical constituents from the aerial part of Rabdosia flexicaulis. Methods Various column chromatography techniques were used to isolate and purify the compounds and their structures were identified by the spectral data. Results Fifteen compounds were isolated and identified as rotundic acid (1), tormentic acid (2), corsolic acid (3), 23-hydroxyursolic acid (4), maslinic acid (5), teuclatriol (6), 3,6-dihydroxy-1-menthen (7), 1- hydroxypinoresinol (8), epipinoresinol (9), lariciresinol (10), caffeic acid (11), rosmarinic acid (12), 3'-O-methyl-rosmarinic acid (13), methyl 4'-O-methyl-rosmarinate (14), and methyl 3-dehydroxyl-rosmarinate (15). Conclusion All the compounds are isolated from the species for the first time, among which compounds 1, 6, 7, 9, 13, and 14 are isolated from the plants in genus Rabdosia (Bl.) Hassk. for the first time.

湖北省自然科学基金项目(2011CDB066);湖北省教育厅优秀中青年人才项目(Q20120109)