5-氨基荧光素 、 2'-deoxy-5'-O-(dimethoxytrityl)-N
6-(phenoxycarbonyl)adenylyl-{3'-{O
P-[2-(4-nitrophenyl)ethyl]}-5'}-2'-deoxy-N
6,3'-O-bis{[2-(4-nitrophenyl)ethoxy]carbonyl}adenosine 以
吡啶 为溶剂,
反应 1.5h,
以68%的产率得到2'-deoxy-N
6-{[(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)amino]carbonyl}-5'-O-(dimethoxytrityl)adenylyl-{3'-{O
P-[2-(4-nitrophenyl)ethyl]}-5'}-2'-deoxy-N
6,3'-O-bis{[2-(4-nitrophenyl)ethoxy]carbonyl}adenosine