Department of Chemistry, Stanford University, Stanford, California 94305, USA.
Org Lett. 2010 Mar 19;12(6):1276-9. doi: 10.1021/ol100167w.
A concise, enantioselective synthesis of the potent aldose reductase inhibitor ranirestat (1) is reported. The synthesis was accomplished employing inexpensive, commercially available starting materials. A palladium-catalyzed asymmetric allylic alkylation (Pd-AAA) of malonate 4 was utilized as a key transformation to construct the tetrasubstituted chiral center in the target.
报道了一种强效醛糖还原酶抑制剂瑞那司他(1)的简洁、对映选择性合成方法。该合成采用了廉价、市售的起始原料完成。利用钯催化的不对称烯丙基烷基化(Pd-AAA)反应,将丙二酸酯 4 作为关键转化步骤,构建目标分子中的四取代手性中心。