Methods are provided for preparing internucleotide phosphorothioate linkages that are enhanced in the Sp or Rp enantiomer comprising coupling a synthon with a 2′-substituted nucleoside in the presence of coupling agent that is selected to enhance either the Rp or Sp
提供了制备在 Sp 或 Rp 对映体中增强的核苷酸
硫代磷酸酯间连接的方法,该方法包括在
偶联剂存在下将合子与 2′-取代的核苷酸偶联,
偶联剂被选择用于增强 Rp 或 Sp