<9-<3'-azido-3'-deoxy-5'-O-(monomethoxytrityl)-β-D-xylofuranosyl>-N
6-<2-(4-nitrophenyl)ethoxycarbonyl>adenin>-2'-yl-<2'-
P-<2-(4-nitrophenyl)ethyl>>-> 5'>-9-<3'-azido-3'-deoxy-2'-O-<2-(4-nitrophenyl)ethoxycarbonyl>-β-D-xylofuranosyl>-N6-<2-... 在
对甲苯磺酸 作用下,
以
甲醇 、 二氯甲烷 为溶剂,
反应 0.5h,
以95%的产率得到<9-(3'-azido-3'-deoxy-β-D-xylofuranosyl)-N6-<2-(4-nitrophenyl)ethoxycarbonyl>adenin>-2'-yl-<2'-P-<2-(4-nitrophenyl)ethyl>>-> 5'>-9-<3'-azido-3'-deoxy-2'-O-<2-(4-nitrophenyl)ethoxycarbonyl>-β-D-xylofuranosyl>-N6-<2-(4-nitrophenyl)ethoxycarb...