InChI=1S/C21H21N3O2/c1-12-4-5-15(20(25)22-17-7-8-17)11-19(12)18-9-6-16(10-13(18)2)21-24-23-14(3)26-21/h4-6,9-11,17H,7-8H2,1-3H3,(H,22,25)