A greener enantioselective synthesis of the antiviral agent North-methanocarbathymidine (N-MCT) from 2-deoxy-d-ribose
作者:Olaf R. Ludek、Victor E. Marquez
DOI:10.1016/j.tet.2009.08.035
日期:2009.10
An enantioselective synthesis of suitably protected (1R,2S,4S,5S)-4-amino-1-(hydroxymethyl)bicyclo[3.1.0]hexan-2-ol, a key starting material for the synthesis of conformationally locked carbocyclic nucleosides, including the antiviral active North-methanocarbathymidine, is reported. Starting from 2-deoxyribose the target Boc-protected amine was prepared in 33% overall yield under conditions that are
适当保护的 (1 R ,2 S ,4 S ,5 S )-4-氨基-1-(羟甲基)双环[3.1.0]己-2-醇的对映选择性合成,这是构象合成的关键原料据报道,锁定碳环核苷,包括具有抗病毒活性的 North-methanocarbathymidine。从 2-脱氧核糖开始,在比以前的方法更生态友好的条件下,以 33% 的总收率制备了目标 Boc 保护的胺。