Imidazo-oxazaphosphorines as Precursors to Chiral Phosphite Triesters
摘要:
New bicyclic imidazo-oxazaphosphorines underwent a highly diastereoselective displacement of the imidazole moiety upon reaction with various alcohols, leading to chiral phosphite triesters as single diastereomers. The introduction of a nucleoside on this bicyclic structure was investigated by several routes, leading to new nucleoside building blocks.
Methods and intermediates for the preparation of oligomers containing diastereomerically enriched phosphorothioate linkages are disclosed.
本发明揭示了制备含有对映异构富集的磷酸硫酯键寡聚物的方法和中间体。
Preparation of phosphorothioate and boranophosphate oligomers
申请人:Isis Pharmaceuticals, Inc.
公开号:US06160109A1
公开(公告)日:2000-12-12
Methods and intermediates for the preparation of oligomers containing diastereomerically enriched phosphorothioate and boranophosphate linkages are disclosed.