目的研究柽柳Tamarix chinensis干燥细嫩枝叶的化学成分。方法运用硅胶、Sephadex LH-20及ODS等色谱技术进行分离纯化,根据理化性质和波谱数据鉴定化合物结构。结果从柽柳干燥细嫩枝叶95%乙醇提取物中分离得到了15个化合物,分别鉴定为柽柳素-7-O-β-D-葡萄糖苷(1)、柽柳素-3-O-α-L-鼠李糖苷(2)、芦丁(3)、5,7,3′,5′-四羟基-6,4′-二甲氧基黄酮(4)、槲皮素-7,3′,4′-三甲醚(5)、5,7,4′-三羟基-3-O-β-D-葡萄糖醛酸苷(6)、芹菜素(7)、鼠李柠檬素(8)、山柰酚(9)、槲皮素(10)、柽柳素(11)、白桦脂酸(12)、2α,3β-二羟基-乌苏-12-烯-28-酸(13)、β-香树脂醇乙酸酯(14)、12-齐墩果烯-2α,3β,23-三醇(15)。结论化合物1~7、13~15为首次从该植物中分离得到,其中,化合物13和15为首次从柽柳属植物中分离得到。
Objective To study the chemical constituents from the stems and leaves of Tamarix chinensis.Methods The compounds were isolated and purified by silica gel,Sephadex LH-20,ODS column chromatography,and their structures were identified on the basis of physicochemical properties and spectroscopic analysis.Results Fifteen compounds were isolated and identified as tamarixetin-7-O-β-D-glucoside(1),tamarixetin-3-O-α-L-rhamnoside(2),rutin(3),5,7,3′,5′-tetrahydroxy-6,4′-dimethoxyflavone(4),quercetin-7,3′,4′-trimethyl ether(5),kaempferol-3-O-β-D-glucuronide(6),apigenin(7),rhamnocitrin(8),kaempferol(9),quercetin(10),tamarixetin(11),betulinic acid(12),2α,3β-dihydroxy-urs-12-en-28-oic acid(13),β-amyrin acetate(14),and 2α,3β,23-trihydroxyolean-12-ene(15).Conclusion Compounds 1—7 and 13—15 are isolated from this plant for the first time,and compounds 13 and 15 are isolated from this genus for the first time.