4-amino-2-(4-methyl-piperazin-1-yl)-pyrimidine-5-carbaldehyde 、
N-[2-chloro-5-(2,5-difluoro-benzylcarbamoyl)-phenyl]-malonamic acid methyl ester 在
哌啶 作用下,
以
甲醇 为溶剂,
以74.1%的产率得到2-(4-Methyl-piperazin-1-yl)-7-oxo-7,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid [2-chloro-5-(2,5-difluoro-benzylcarbamoyl)-phenyl]amide