对氟苯甲醛 、 4-(3-Cyano-4-hydroxy-6-oxo-1,6-dihydro-pyridin-2-yl)-piperazine-1-carboxylic acid ethyl ester 在
哌啶 作用下,
以
乙醇 为溶剂,
反应 5.0h,
以80%的产率得到ethyl 4-[3-cyano-5-[[5-cyano-6-(4-ethoxycarbonylpiperazin-1-yl)-4-hydroxy-2-oxo-1H-pyridin-3-yl]-(4-fluorophenyl)methyl]-4-hydroxy-6-oxo-1H-pyridin-2-yl]piperazine-1-carboxylate