4-azidobutyl (4R)-3-[[(1S,4R)-7,7-dimethyl-2-oxo-1-bicyclo[2.2.1]heptanyl]methylsulfonyl]-1-[(3R,5S)-1-[dimethyl(phenyl)silyl]-5-hydroxytetradecan-3-yl]-4-methyl-2-oxo-4H-pyrimidine-5-carboxylate 在
迭氮酸 、
偶氮二甲酸二异丙酯 、
三苯基膦 作用下,
以
苯 为溶剂,
以95%的产率得到4-azidobutyl(4R)-1-((1R,3R)-3-azido-1-{2-[dimethyl(phenyl)silyl]ethyl}dodecyl)-3-{[(7,7-dimethyl-2-oxobicyclo[2.2.1]hept-1-yl)methyl]sulfonyl}-4-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate