反应详情

Prepared analogously to Example (1b) from 5,11-dihydro-11-(prop-2-ynyl)-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one, paraformaldehyde and 2-[(diethylamino)methyl]piperidine in a yield of 28% of theory. Colourless crystals, m.p. 132°-134° C.