4-Chloro-3-cyano-5-methylpyrrolo[1,2-b]pyridazine-6-carboxylic acid ethyl ester 、
4-氨基-alpha-苯基苯乙腈 在
silica gel 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以to isolate 3-cyano-4-[4-(cyano-phenyl-methyl)-phenylamino]-5-methyl-pyrrolo[1,2-b]pyridazine-6-carboxylic acid ethyl ester 368 as yellow film (4.3 mg, 52%)的产率得到3-Cyano-4-[4-(cyano-phenyl-methyl)-phenylamino]-5-methyl-pyrrolo[1,2-b]pyridazine-6-carboxylic acid ethyl ester