Synthesis and enantioselective lipase-catalyzed kinetic resolution of methyl 6-(methoxycarbonyl-methyl)sulfanyl-1,4-dihydropyridine-3-carboxylates
作者:Z. Andzans、A. Krauze、I. Adlere、L. Krasnova、G. Duburs
DOI:10.1007/s10593-013-1263-8
日期:2013.6
A series of methyl 6-(methoxycarbonylmethyl)sulfanyl-1,4-dihydropyridine-3-carboxylates as more lipophilic derivatives of biologically active 6-methylsulfanyl-1,4-dihydropyridine-3-carboxylic acid esters has been prepared by alkylation of 6-thioxo-1,4-dihydropyridines with methyl bromoacetate. The kinetic resolution catalyzed by Candida antarctica lipase B (Novozym 435®) has been investigated; the
已经通过6-烷基的烷基化制备了一系列6-(甲氧基羰甲基)硫烷基-1,4-二氢吡啶-3-羧酸甲酯,作为具有生物活性的6-甲基硫烷基-1,4-二氢吡啶-3-羧酸酯的亲脂性衍生物。 thioxo-1,4-dihydropyridines与溴乙酸甲酯。通过南极假丝酵母脂肪酶B(的Novozym 435催化的动力学拆分®)已经研究; 目标产物的对映体过量达到70%。实验表明6-(甲氧羰基甲基)硫烷基是本质上是新的活化基团,其通过手性中心的五个键被除去,易于酶水解,可用于外消旋1,4-二氢吡啶的动力学拆分。