10-{3-{3-[(4,4'-dimethoxytrityl)oxy]-2-hydroxypropoxy}propyl}-3-methyl-8-[(phenylmethyl)amino]benzo[g]pteridine-2,4(1H,3H)-dione 、
双(二异丙基氨基)(2-氰基乙氧基)膦 在
四氮唑 作用下,
以
二氯甲烷 为溶剂,
反应 8.0h,
以77%的产率得到10-{3-{3-[(4,4'-dimethoxytrityl)oxy]-2-hydroxypropoxy}propyl}-3-methyl-8-[(phenylmethyl)amino]benzo[g]pteridine-2,4(1H,3H)-dione 2''-(2-cyanoethyl N,N-diisopropylphosphoramidite)