Facile access to 2′-O-acyl prodrugs of 1- (β-d-arabinofuranosyl)-5(E)-(2-bromovinyl)uracil (BVAraU) via regioselective esterase-catalyzed hydrolysis of 2′ 3′, 5′-triesters1
作者:Pier G. Baraldi、Rita Bazzanini、Stefano Manfredini、Daniele Simoni、Morris J. Robins
DOI:10.1016/s0040-4039(00)93411-7
日期:1993.5
3,5-tri-O-acetyl-β-d-arabinofuranosyl) -5-[2-(trimethylsilyl)-vinyl]uracil (3) with pyridinium bromide perbromide and deacetylation gave BVAraU (2). Pig liver esterase (EC 3.1.1.1) catalysed the regioselective hydrolysis of 1-(2,3,5-tri-O-acyl-β-d-arabinofuranosyl)uracil derivatives to their 2′-O-acyl monoesters.
用溴化吡啶鎓过溴化物处理1-(2,3,5-三-O-乙酰基-β-d-阿拉伯呋喃糖基)-5- [2-(三甲基甲硅烷基)-乙烯基]尿嘧啶(3)并脱乙酰化得到BVAraU(2) 。猪肝酯酶(EC 3.1.1.1)催化1-(2,3,5-三-O-酰基-β-d-阿拉伯呋喃糖基)尿嘧啶衍生物的区域选择性水解为2'- O-酰基单酯。