3-(N-ethyl-N-isopropyl-amino)-propyl chloride 、
6,11-Dihydro-2,6-dimethyl-5H-pyrido<2,3-b><1,5>benzodiazepin-5-on 以
1,4-二氧六环 、 mineral oil 为溶剂,
以36%的产率得到11-<3-(N-Ethyl-isopropylamino)-propyl>-6,11-dihydro-2,6-dimethyl-5H-pyrido<2,3-b><1,5>benzodiazepin-5-on