ethyl 2-(1-(benzyloxycarbonylamino)-4-fluoro-4-(hydroxymethyl)cyclohexyl)-5-hydroxy-6-oxo-1,6-dihydropyrimidine-4-carboxylate 在
偶氮二甲酸二乙酯 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以50.5%的产率得到7-fluoro-4,6,7,8,9,10-hexahydro-3-hydroxy-4-oxo-10-[[(phenylmethoxy)carbonyl]amino]-7,10-ethanopyrimido[1,2-a]azepine-2-carboxylic acid ethyl ester