InChI=1/C21H24N4O4/c1-6-24-19-18(20(27)25(7-2)21(24)28)23(4)17(22-19)11-9-14-8-10-15(13(3)26)16(12-14)29-5/h8-12H,6-7H2,1-5H3/b11-9+ 765AA2E68C119136