InChI=1/C18H25N3O4/c1-12(16(22)21-17(19)23)20-10-18(7-3-2-4-8-18)13-5-6-14-15(9-13)25-11-24-14/h5-6,9,12,20H,2-4,7-8,10-11H2,1H3,(H3,19,21,22,23)/p+1/t12-/m1/s1/fC18H26N3O4/h20-21H,19H2/q+1 8973D0D7D12D03BC