Copper-Catalyzed Asymmetric Synthesis and Comparative Aldose Reductase Inhibition Activity of (+)/(−)-1,2-Benzothiazine-1,1-dioxide Acetic Acid Derivatives
作者:Shagufta Parveen、Saghir Hussain、Xiangyu Qin、Xin Hao、Shaojuan Zhu、Miao Rui、Shuzhen Zhang、Fengyan Fu、Bing Ma、Qun Yu、Changjin Zhu
DOI:10.1021/jo500338c
日期:2014.6.6
the α,β-unsaturated carboxylate class was developed by which synthesis of (+)- and (−)-enantiomers of 1,2-benzothiazine-1,1-dioxide acetates has been achieved with a good yield and an excellent level of enantioselectivity. A comparative structure–activity relationship study yielded the following order of aldose reductase inhibition activity: (−)-enantiomers > racemic > (+)-enantiomers. Further, a molecular
开发了用于α,β-不饱和羧酸酯类不对称1,4-氢化硅烷化的铜催化剂体系,通过该体系合成1,2-苯并噻嗪-1,1-二氧化物乙酸酯的(+)-和(-)-对映异构体已经以良好的收率和优异的对映选择性水平实现了本发明。对比结构-活性关系研究得出了醛糖还原酶抑制活性的以下顺序:(-)-对映体>外消旋>(+)-对映体。此外,分子对接研究表明(-)-对映异构体具有显着的结合亲和力,因此抑制活性增强。