对硝基苯酚 、 [(2S,3R,4R,5R)-2-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-(tert-butyl-dimethyl-silanyloxy)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl]-acetic acid; compound with triethyl-amine 在
1-羟基苯并三唑 、
N,N'-二环己基碳二亚胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以63%的产率得到2'-O-(tert-butyldimethylsilyl)-3'-deoxy-3'-{[(4-nitrophenoxy)carbonyl]methyl}-5'-O-dimethoxytrityl-5-methyluridine