6-[5-nitro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl]hexan-1-aminium trifluoroacetate 、
胸腺嘧啶脱氧核苷-5-羧酸 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85%的产率得到(2S,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-N-(6-(5-nitro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)hexyl)tetrahydrofuran-2-carboxamide