5'-amino-2'-O-(tert-butyldimethylsilyl)-3'-[[N-(2',3'-bis-O-(tert-butyldimethylsilyl)-5'-deoxyuridin-5'-yl)carbamoyl]methyl]-3',5'-dideoxyuridine 、 5'-azido-2'-O-(tert-butyldimethylsilyl)-3',5'-dideoxy-3'-{[(4-nitrophenoxy)carbonyl]methyl}uridine 以
二氯甲烷 为溶剂,
反应 96.0h,
以61%的产率得到5'-azido-2'-O-(tert-butyldimethylsilyl)-3'-(N-carbonylmethyl)-3',5'-dideoxyuridinyl-(3'-5')-5'-amino-2'-O-(tert-butyldimethylsilyl)-3'-(N-carbonylmethyl)-3',5'-dideoxyuridinyl-(3'-5')-5'-amino-2',3'-bis-O-(tert-butyldimethylsilyl)uridine