InChI=1S/C18H21N5O2/c24-14-8-6-13(7-9-14)21-18-22-16-15(19-11-20-16)17(23-18)25-10-12-4-2-1-3-5-12/h6-9,11-12,24H,1-5,10H2,(H2,19,20,21,22,23)