大苞雪莲Saussurea involucrafa kar.ef Kin采自新疆,其化学成分未见过报导。 全草粉末用70％酒精浸泡,蒸除酒精的滤液,用石油醚,乙醚提取。然后再用1％硼砂水溶液、5%碳酸氢钠水溶液和5％碳酸钠水溶液提取,用盐酸中和,得浅黄色沉淀,将沉淀物通过聚酰胺粉(80—153目)柱层析。氯仿∶甲醇∶丁酮(12∶2∶1)洗脱, Saussurea involucrafa kar.ef Kin is collected from Xinjiang and its chemical composition has not been reported. The whole grass powder was soaked with 70% alcohol, and the filtrate was evaporated and extracted with petroleum ether and ether. Then, it was extracted with a 1% aqueous borax solution, a 5% aqueous sodium hydrogencarbonate solution and a 5% aqueous sodium carbonate solution, neutralized with hydrochloric acid to give a pale yellow precipitate, and the precipitate was subjected to column chromatography using a polyamide powder (80-153 mesh). Elution with chloroform:methanol:butanone (12:2:1)