The first synthesis of enantiomerically pure cyclopropylphosphonate analogues of nucleotides via asymmetric cyclopropanation of chiral (1-diethoxyphosphoryl)vinyl p-tolyl sulfoxide

被引:28
|
作者
Midura, WH [1 ]
Krysiak, JA [1 ]
Mikolajczyk, M [1 ]
机构
[1] Polish Acad Sci, Ctr Mol & Macromol Studies, Dept Heteroorgan Chem, PL-90363 Lodz, Poland
关键词
D O I
10.1016/S0957-4166(03)00211-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
(S)-(+)-(1-Diethoxyphosphoryl)vinyl p-tolyl sulfoxide undergoes cyclopropanation with ethyl (dimethylsulfuranylidene)acetate (EDSA) in a highly diastereoselective manner (facial stereoselectivity up to 12:1). The major diastereomer obtained in this reaction, (1S,2S)-(1-diethoxyphosphoryl-2-ethoxycarbonyl)cyclopropyl p-tolyl sulfoxide, was converted in three steps into enantiopure cyclopropylphosphonate analogues of purine nucleotides as the constrained forms of antiviral 1-alkenylphosphonic acid derivatives of purines. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1245 / 1249
页数:5
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