Objective To study the chemical constituents of Swertia cincta.Methods Preparative liquid chromatography was employed.Th......

秦艽为著名传统中药。中青海西宁产秦艽的甲醇提取物的水溶性部分分离到１个新裂环烯醚萜甙，命名为秦艽甙Ａ，２个已知的环烯醚萜甙即龙胆苦......