2-氰乙基N,N-二异丙基氯亚磷酰胺 、
1-{5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl}-2H-1,2,3-benzotriazole 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以83%的产率得到2-{5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-O-methyl-β-D-ribofuranosyl}-1H-1,2,3-benzotriazole 3'-(2-cyanoethyl diisopropylphosphoramidite)