InChI=1S/C18H29N5O/c1-13-11-23(10-7-19-13)18(4)5-8-22(9-6-18)17(24)16-14(2)20-12-21-15(16)3/h12-13,19H,5-11H2,1-4H3/t13-/m0/s1