5-氨基荧光素 、 2'-deoxy-N
6,5'-O-bis{[2-(4-nitrophenyl)ethoxy]carbonyl}adenylyl-{3'-{O
P-[2-(4-nitrophenyl)ethyl]}-5'}-2'-deoxy-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 2.0h,
以44%的产率得到N-[9-[(2R,4S,5R)-5-[[[(2R,3S,5R)-5-[6-[[N-(3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-yl)-C-hydroxycarbonimidoyl]amino]purin-9-yl]-2-[[[(2R,3S,5R)-5-[6-[[hydroxy-[2-(4-nitrophenyl)ethoxy]methylidene]amino]purin-9-yl]-2-[2-(4-nitrophenyl)ethoxycarbonyloxymethyl]oxolan-3-yl]oxy-[2-(4-nitrophenyl)ethoxy]-oxidophosphaniumyl]oxymethyl]oxolan-3-yl]oxy-[2-(4-nitrophenyl)ethoxy]-oxidophosphaniumyl]oxymethyl]-4-[2-(4-nitrophenyl)ethoxycarbonyloxy]oxolan-2-yl]purin-6-yl]-1-[2-(4-nitrophenyl)ethoxy]methanimidic acid