5-氨基荧光素 、
3',5'-di-O-acetyl-2'-deoxy-O6-[2-(4-nitrophenyl)ethyl]-N2-(phenoxycarbonyl)guanosine 以
吡啶 为溶剂,
反应 2.0h,
以76%的产率得到3',5'-di-O-acetyl-2'-deoxy-N
2-{[(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)amino]carbonyl}-O
6-[2-(4-nitrophenyl)ethyl]guanosine