反应详情

In the manner given in Example 1, 2-amino-7-chloro-5-(o-chlorophenyl)-3H-1,4-benzodiazepine, methyl propiolate and methanol were refluxed. The mixture was chromatographed to give 9-chloro-7-(o-chlorophenyl)pyrimido[1,2-a][1,4]benzodiazepin-3(5H)-one.

1. temperaturewere refluxed
2. customThe mixture was chromatographed