InChI=1S/C20H19N5O3/c1-12-3-2-4-15(9-12)23-19-16(18(21)28)11-22-20(25-19)24-14-7-5-13(6-8-14)10-17(26)27/h2-9,11H,10H2,1H3,(H2,21,28)(H,26,27)(H2,22,23,24,25)