InChI=1/C19H19N3O2/c23-19(22-24)10-9-14-5-7-15(8-6-14)11-20-12-16-13-21-18-4-2-1-3-17(16)18/h1-10,13,20-21,24H,11-12H2,(H,22,23)/p+1/b10-9+/fC19H20N3O2/h20,22H/q+1 B21C2729A24B8440