Substrate stereocontrol in bromine-induced intermolecular cyclization: asymmetric synthesis of pitavastatin calcium
作者:Weiqi Chen、Fangjun Xiong、Qian Liu、Lingjun Xu、Yan Wu、Fener Chen
DOI:10.1016/j.tet.2015.05.053
日期:2015.7
approach to synthesize pitavastatin calcium (1), an effective HMG-CoA reductase inhibitor, based on readily available and attractively functionalized (R)-3-chloro-1,2-propanediol is reported. This work highlights an intermolecular diastereoselective bromine-induced cyclization of homoallylic carbonate to meet stereochemical challenges in the synthesis of statins. An efficient route to a new triphenylphosphonium
据报道一种新颖的合成匹伐他汀钙(1)的新方法,它是一种有效的HMG-CoA还原酶抑制剂,它基于易于获得且功能强大的(R)-3-氯-1,2-丙二醇。这项工作突出了分子间非对映选择性溴诱导的均烯丙基碳酸酯的环化反应,以满足他汀类药物合成中的立体化学挑战。还提出了一种新的喹啉核四氟硼酸三苯基bor盐的有效途径。