InChI=1S/C21H23N5O3/c27-18(24-16-7-2-1-3-8-16)14-25-17-9-5-11-23-19(17)20(28)26(21(25)29)13-15-6-4-10-22-12-15/h4-6,9-12,16H,1-3,7-8,13-14H2,(H,24,27)