InChI=1S/C18H23N5O2/c1-4-5-8-23-15(22-16-17(19)20-11-21-18(16)23)10-12-9-13(24-2)6-7-14(12)25-3/h6-7,9,11H,4-5,8,10H2,1-3H3,(H2,19,20,21)