N-[6-(1,2-Bis-ethylsulfanyl-ethyl)-9-((2R,4S,5R)-4-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-9H-purin-2-yl]-2-phenoxy-acetamide 在
吡啶 、
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
生成 Diisopropyl-phosphoramidous acid (2R,3S,5R)-5-[6-(1,2-bis-ethylsulfanyl-ethyl)-2-(2-phenoxy-acetylamino)-purin-9-yl]-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester