3'-O-(diisopropylamino)phosphinoacetic acid α,α-dimethyl-β-cyanoethyl ester 5'-O-(4,4'-dimethoxytrityl)thymidine 在
四氮唑 、
苯基二硫化物 作用下,
以
乙腈 为溶剂,
生成 [(2R,3S,5R)-3-acetyloxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-[(2R,3S,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-[2-(1-cyano-2-methylpropan-2-yl)oxy-2-oxoethyl]-sulfidophosphanium