Synthesis of novel 3′,4′-seco analogues of didehydro dideoxy nucleosides as potential antiviral agents
摘要:
Novel acyclo analogues (13,14) of didehydro dideoxy adenosine (d4A) lacking C-3'-C-4' bond were synthesized as potential anti-HIV agents. The key step involves the bromination of unsaturated isomer 6 with NBS in mono protected ethylene glycol leading to 3',4'-seco-2'-bromo-3'-hydroxl compound 11a. Activation of 3'-hydroxy group and reductive elimination of vicinal bromo tosylate gave 13 which on deprotection was converted into the target molecule 14.
The invention is related to phosphorus substituted compounds with antiviral activity, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.
A simple preparation of N-vinyl derivatives of DNA nucleobases
作者:Paola Ciapetti、Maurizio Taddei
DOI:10.1016/s0040-4020(98)00670-x
日期:1998.9
1-Vinylpyrimidines and 9-vinylpurines have been prepared via selective alkylation of the heterocyclic ring with 1,2-dibromoethane (or 1,2-dibromopropanol) followed by dehydrobromination with sodium ethoxide in ethanol/ DME. (C) 1998 Elsevier Science Ltd. All rights reserved.
Nucleoside Phosphonate Analogs
申请人:Boojamra Constantine G.
公开号:US20110071101A1
公开(公告)日:2011-03-24
The invention is related to phosphorus substituted nucleoside compounds and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.