{9-{(2R,3S,4S,5R)-4-Hydroxy-5-hydroxymethyl-3-[2-(4-nitro-phenyl)-ethoxycarbonylamino]-tetrahydro-furan-2-yl}-6-[2-(4-nitro-phenyl)-ethoxy]-9H-purin-2-yl}-carbamic acid 2-(4-nitro-phenyl)-ethyl ester 在
四氮唑 作用下,
以
吡啶 、
二氯甲烷 为溶剂,
反应 48.0h,
生成 9-{2-deoxy-5-O-(dimethoxytrityl)-2-[2-(4-nitrophenyl)ethoxycarbonylamino]-β-D-arabinofuranosyl}-N
2-[2-(4-nitrophenyl)ethoxycarbonyl]-O
6-[2-(4-nitrophenyl)ethyl]guanine 3'-(2-cyanoethyl N,N-diisopropylphosphoramidite)