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作 者:杨淑敏[1] 刘锡葵[1] 卿晨[2] 吴大刚[1] 朱大元[3]
机构地区:[1]中国科学院昆明植物研究所植物化学与西部植物资源持续利用国家重点实验室,云南昆明650224 [2]昆明医学院云南省天然药物药理实验室,云南昆明650031 [3]中国科学院上海生命科学院药物研究所新药研究国家重点实验室,上海201203
出 处:《药学学报》2007年第3期292-296,共5页Acta Pharmaceutica Sinica
摘 要:本文的目的是对水杨柳的根部进行化学成分研究,采用硅胶柱色谱的方法分离和纯化化合物,根据理化性质和波谱方法鉴定化合物结构。从水杨柳的根部分离得到了13个化合物,包括1-羰基-油桐酸(1),油桐酸(2)-3-乙酰氧基-油桐酸(3),蒲公英赛酮(4),蒲公英赛醇(5),3-乙酰氧基-12-齐墩果烯-28-酸甲酯(6),3-乙酰氧基-12-齐墩果烯-28-醇(7),熊果酸(8),羽扇豆醇(9),乙酰氧羽扇豆醇酯(10),臭矢菜素A(11),大黄酚(12)和没食子酸(13)。化合物1为新的蒲公英赛烷三萜类化合物,化合物2~12均为首次从该植物中分离得到。并用MTT法测定了化合物1—3对AGZY83-a和SMMC-7721细胞的抑制作用。证明化合物2对AGZY83-a细胞有弱抑制作用(IC5033.055μg·mL^-1)。A new compound and twelve known compounds were isolated from the ethyl acetate extract of the roots of Homonoia riparia Lour, which are used in folk medicine for treatment of hepatitis, bellyache and scald, by the method of silica gel column chromatography repeatedly with a gradient of PE-EtOAc, PE-Me2CO, CHCl3-Me2CO, CHCl3-MeOH. Their structures were identified as a new compound 1-oxoaleuritolic acid (1) , and twelve known compounds aleuritolic acid (2) , 3-acetoxy-aleuritolic acid (3) , taraxerone (4) , taraxerol (5) , methyl 3-acetoxy-12-oleanen-28-oate (6) , 3-acetoxy-12-oleanen-28-ol (7) , ursolic acid (8) , lupenol (9) , 3β-acetoxy-lupenol (10) , cleomiscosin A (11) , chrysophanol (12), and gallic acid (13), which were obtained from this plant for the first time, by the spectroscopic techniques of NMR, HMBC, IR and MS, separately. Among the cytotoxicities evaluation of compounds 1 -3 towards AGZY 83-a (human lung cancer cells) and SMMC-7721 (human liver cancer cells) tumor cells was assayed by MTT methods with cis-dichlorodiamminoplatinum (DDP) used as positive control. Compound 2 exerted weak activity against AGZY 83-a with the IC50 value of 33. 055 μg · mL^-1 , while 1 and 3 showed no activity to these two cell lines.
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