InChI=1S/C24H23N3O3/c1-28-22-12-20-21(13-23(22)29-2)25-15-26-24(20)27-10-9-19(14-27)30-18-8-7-16-5-3-4-6-17(16)11-18/h3-8,11-13,15,19H,9-10,14H2,1-2H3/t19-/m1/s1