反应详情

Prepared analogously to Example lb) from 5,11-dihydro-11-(2-propynyl)-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one, paraformaldehyde and hexahydro-1H-azepine in a yield of 35% of theory. Colourless crystals m.p. 157° C. (ethyl acetate).