Semisynthesis of apigenin and acacetin-7-O-β-d-glycosides from naringin and their cytotoxic activities
作者:Jidan Liu、Ling Chen、Shuanglian Cai、Qiuan Wang
DOI:10.1016/j.carres.2012.05.013
日期:2012.8
exhibits potent cytotoxicity against MCF-7 selectively. Among the synthesized target compounds, 3, 4, 7, 11, 12, 15, and 16 were new compounds, the natural product 8 was the first synthesized and the synthesis of natural products 5, 6, 13, and 14 was efficiently improved by the new synthetic routes.
芹菜素-7-O-β-D-糖苷1-8和acacetin-7-O-β-D-糖苷9-16由4'-O-苄基芹菜素17和acacetin 18通过糖苷化和相应的脱保护作用而半合成分别是α-乙酰基糖基溴化物。化合物17和18是通过碘化,随后碱诱导的消除,4'-O-苄基化或4'-O-甲基化以及使用柚皮苷作为起始原料的酸水解制备的,所述柚皮苷为容易获得且廉价的原料。通过标准MTT方法评估了它们对五种人类癌细胞系(HL-60,SMMC-7721,A-549,MCF-7和SW480)的细胞毒性潜力。结果表明,化合物2、9和19对HL-60,SMMC-7721,A-549,MCF-7和SW480表现出中等的细胞毒性,而化合物3对MCF-7选择性表现出有效的细胞毒性。在合成的目标化合物中,有3、4、7、11