InChI=1S/C18H19N5O3/c1-22-14-6-5-12(10-13(14)21-16(22)11-19)18(26)23(9-7-17(24)25)15-4-2-3-8-20-15/h2-6,8,10H,7,9,11,19H2,1H3,(H,24,25)