4-Carboxy-4'-methyl-2,2'-bipyridine succinimidyl ester 、 5-(2-Amino-ethylsulfanyl)-1-((2R,4S,5R)-4-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-1H-pyrimidine-2,4-dione; compound with trifluoro-acetic acid 在
三乙胺 作用下,
以72%的产率得到5-<2-(4'-methyl-2,2'-dipyrid-4-yl-carboxamido)ethylthio>-2'-deoxyuridine