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目的 对报春花科珍珠菜属药用植物单条草 Lysimachia candida的化学成分进行研究。方法 采用硅胶柱层析进行分离和纯化 ,通过波谱和化学方法进行结构鉴定。结果 从正丁醇萃取部分分离出 1个三萜皂苷类化合物 ,结构鉴定为 :3β,16α-二羟基齐墩果 - 12 -烯 - 2 8-醛 - 3- O-β- D-吡喃葡萄糖基 - 2 3- O-α- D-呋喃核糖苷 ,命名为单条草苷甲 ( )。结论 单条草苷甲是新结构的三萜皂苷。
Objective To study the chemical constituents of Lysimachia candida, a medicinal plant of the genus Lysimachia. Methods Separation and purification were carried out by silica gel column chromatography and the structures were identified by spectroscopic and chemical methods. Results A triterpene saponin compound was isolated from the n-butanol extraction fraction and the structure was identified as: 3β,16α-dihydroxyolean-12 ene-2 aldehyde-3-O-β-D-pyran Glucose-based 2-3-O-α-D-ribofuranoside, named as single glucoside A. Conclusion Single glucosinolate A is a triterpenoid saponin with a new structure.