InChI=1/C15H20N2O3/c1-10-3-4-13(12(9-10)15(19)20)17-7-5-11(6-8-17)14(18)16-2/h3-4,9,11H,5-8H2,1-2H3,(H,16,18)(H,19,20)/p-1/fC15H19N2O3/h16H/q-1 46A7DAC69EC3AD3A