InChI=1/C16H22N2O3/c1-16(2,3)13(17)14(19)18-8-4-5-10-9-11(15(20)21)6-7-12(10)18/h6-7,9,13H,4-5,8,17H2,1-3H3,(H,20,21)/p-1/t13-/m1/s1/fC16H21N2O3/q-1 7CF8C12977F7092B