Imidazole-1-carboxylic acid (2R,3R,4R,5R)-4-chloro-5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-2-trityloxymethyl-tetrahydro-furan-3-yl ester 在
偶氮二异丁腈 、
三正丁基氢锡 作用下,
以
甲苯 为溶剂,
以97%的产率得到Imidazole-1-carboxylic acid (2R,3S,5R)-5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-2-trityloxymethyl-tetrahydro-furan-3-yl ester