(1R)-1,4-anhydro-2-deoxy-5-O-(4,4'-dimethoxy)trityl-1-C-(4-(3-(trifluoromethyl)-3H-diazirin-3-yl)phenyl)-D-erythropentitol 、
2-氰乙基N,N-二异丙基氯亚磷酰胺 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
以84%的产率得到(1R)-1,4-anhydro-2-deoxy-5-O-(4,4'-dimethoxy)trityl-1-C-(4-(3-(trifluoromethyl)-3H-diazirin-3-yl)phenyl)-D-erythropentitol 2-cyanoethyl diisopropylphosphoramidite