N,N'-羰基二咪唑 、
4-Pyrrolidinotetrolic acid 、 2-amino-8-ethylthio-7-ethyl-5-(p-methylphenyl)-3H-1,4-benzodiazepine 以
tetrahydrofuran N,N-dimethylformamide 为溶剂,
以to give 10-ethylthio-9-ethyl-1-(1-pyrrolidinylmethyl)-7-(p-methylphenyl)pyrimido[1,2-a][1,4]benzodiazepin-3(5H)-one的产率得到10-Ethylthio-9-ethyl-1-(1-pyrrolidinylmethyl)7-(p-methylphenyl)pyrimido[1,2-a][1,4]-benzodiazepin-3(5H)-one