大蓟化学成分的研究大蓟化学成分的研究

目的研究中药大蓟Cirsium japonicum DC.的化学成分。方法应用多种色谱技术进行分离纯化,根据化合物的理化性质和光谱数据进行结构鉴定。结果共分得12个化合物,分别鉴定为cis-8,9-epoxy-heptadeca-1-ene-11,13-diyne-10-ol (1), ciryneol A (2), 8,9,10-triacetoxy-heptadeca-1-ene-11,13-diyne (3), ciryneone F (4), cireneol G (5), ciryneol H (6), ciryneol C (7),对-香豆酸(8),丁香苷(9),蒙花苷(10),β-谷甾醇(11)和胡萝卜苷(12)。结论4,5,6为新化合物,3为新天然产物,8为首次从大蓟中获得。

Studies on the chemical constituents of Cirsium japonicum DC.

AIM: In order to look for new bioactive compounds, investigation on the chemical constituents, especially on the typical polyacetylenes from the rhizomes of Cirsium japonicum DC. was carried out. METHODS: Chromatographic techniques including silica column chromatography and preparative silica thin-layer chromatography were used to separate and purify the constituents. Their structures were elucidated by physicochemical properties and spectral analyses including UV, IR, 1HNMR, 13CNMR, HMQC, HMBC and HREIMS. RESULTS: Twelve compounds were isolated from the rhizomes of Cirsium japonicum DC., and their structures were identified as cis-8, 9-epoxy-heptadeca-1-ene-11, 13-diyne-10-ol (1), ciryneol A (2), 8,9,10-triacetoxyheptadeca-1-ene-11,13-diyne (3), ciryneone F (4), cireneol G (5), ciryneol H (6), ciryneol C (7), p-coumaric acid (8), syringin (9), linarin (10), beta-sitosterol (11) and daucosterol (12). CONCLUSION: Compounds 4, 5 and 6 are new compounds, compound 3 is a new natural product and compound 8 was isolated from this plant for the first time.