InChI=1/C21H21N3O/c1-3-15(2)21(25)24-19-14-18(16-10-6-4-7-11-16)22-20(23-19)17-12-8-5-9-13-17/h4-15H,3H2,1-2H3,(H,22,23,24,25)/t15-/m1/s1/f/h24H 4A494BBDADE7288A