InChI=1/C18H21N5O2/c1-3-23-16-13(5-4-8-19-16)18(24)21(2)14-6-7-15(20-17(14)23)22-9-11-25-12-10-22/h4-8H,3,9-12H2,1-2H3/p+1/fC18H22N5O2/h20H/q+1 48DF69226B4265B2