InChI=1/C15H17N5O/c1-4-20-13-10(6-5-9-17-13)15(21)19(3)11-7-8-12(16-2)18-14(11)20/h5-9H,4H2,1-3H3,(H,16,18)/p+1/fC15H18N5O/h16,18H/q+1 BE9B2CCFC9E9D4ED