反应详情

In the manner given in Example 13, 6,11-dihydro-11-(piperidinoacetyl)-5H-pyrido[2,3-b][1,5]benzodiazepin-5-thione is heated to about 200° C. with ethyl carbazate to give 2,9-dihydro-9-(piperidinoacetyl)-3H-pyrido[3,2-c]-s-triazolo[4,3-a][1,5]benzodiazepin-3-one.