对硝基苯酚 、
1-<2'-deoxy-5'-O-(4,4'-dimethoxytriphenylmethyl)-β-D-threo-pentafuranosyl>thymine 3'-(3-carboxypropanoate) 在
吡啶 、 N,N-dicyclocarbodiimide 作用下,
以
1,4-二氧六环 为溶剂,
反应 2.0h,
生成 Succinic acid (2R,3R,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester 4-nitro-phenyl ester