InChI=1S/C21H24N4O/c1-13-12-23-21(22-9-4-10-25(2)3)19-18-16-7-6-15(26)11-14(16)5-8-17(18)24-20(13)19/h5-8,11-12,24,26H,4,9-10H2,1-3H3,(H,22,23)