InChI=1/C16H19N3O2/c1-11(20)13-8-15(17-9-13)16(21)18-14-7-5-4-6-12(14)10-19(2)3/h4-9,17H,10H2,1-3H3,(H,18,21)/p+1/fC16H20N3O2/h18-19H/q+1 F702EF1E0A17459B