InChI=1/C15H20N2O3/c16-12-6-4-11(5-7-12)15(20)17-10-2-1-3-13(17)8-9-14(18)19/h4-7,13H,1-3,8-10,16H2,(H,18,19)/p-1/t13-/m1/s1/fC15H19N2O3/q-1 0D60AB80AFCEA697