A concise synthesis of anti-viral agent F-ddA, starting from (S)-dihydro-5-(hydroxymethyl)-2(3H)-furanone
作者:Anusuya Choudhury、Fuqiang Jin、Dengjin Wang、Zhe Wang、Guoyou Xu、Dieu Nguyen、John Castoro、Michael E Pierce、Pat N Confalone
DOI:10.1016/s0040-4039(02)02532-7
日期:2003.1
Anti-HIV agent beta-F-ddA (1) has been synthesized starting from readily available non-sugar, (S)-(+)-Dihydro-5-(hydroxymethyl)-2-(3H)-furanone (4). A highly sa n-stereoselective fluorination of the hydroxy lactone 2 generates the key intermediate fluorolactone 5 in a short and concise synthetic sequence. Reduction of 5 followed by bromination generates the aglycon which is glycosylated to generate F-ddA by amination and deprotection. Steric bulk of the 5-protecting group has minimal effect on the steric course of glycosylation. (C) 2002 Elsevier Science Ltd. All rights reserved.