InChI=1/C16H19N3O4/c1-18-15(22)12-5-4-10(7-13(12)16(18)23)17-14(21)9-19-6-2-3-11(20)8-19/h4-5,7,11,20H,2-3,6,8-9H2,1H3,(H,17,21)/p+1/t11-/m0/s1/fC16H20N3O4/h17,19H/q+1 D2A77C2DB4D7DBC7