[EN] METHODS OF PREPARING 2'-O-SUBSTITUTED PURINE NUCLEOSIDES<br/>[FR] PROCÉDÉS DE PRÉPARATION DE NUCLÉOSIDES DE PURINE 2'-O-SUBSTITUÉS
申请人:ISIS PHARMACEUTICALS INC
公开号:WO2011115817A1
公开(公告)日:2011-09-22
Provided herein are methods for preparing 2'-O-substituted purine nucleosides without protecting exocyclic amino groups on the base during alkylation. The methods are particularly useful in that the products are crystalline enabling purification without chromatography.