2-(3-aminophenyl)-5-methyl-2,4-dihydropyrazol-3-one hydrochloride 、 2-(cyclopropanecarbonylamino)-3-(cyclopropylmethylcarbamoyl)-4,5,6,7-tetrahydrobenzothiophene-5-carboxylic acid 在
(1-cyano-2-ethoxy-2-oxoethylidenaminooxy)dimethylaminomorpholinocarbenium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以26%的产率得到2-(cyclopropanecarbonylamino)-N3-(cyclopropylmethyl)-N5-[3-(3-methyl-5-oxo-4H-pyrazol-1-yl)phenyl]-4,5,6,7-tetrahydrobenzothiophene-3,5-dicarboxamide