5-氨基-5-脱氧胸腺嘧啶脱氧核苷 、
3-(3,4-dihydro-5-bromo-2,4-dioxopyrimidin-1(2H)-yl)propanoic acid 在
4-(4,6-二甲氧基三嗪-2-基)-4-甲基吗啉盐酸盐 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以92%的产率得到3-(5-bromo-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-N-(((2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl)propanamide