InChI=1S/C19H24N2O3S/c1-13(2)10-11-24-15-8-6-14(7-9-15)12-16-17(22)21(4)19(25-5)18(23)20(16)3/h6-10,12,19H,11H2,1-5H3/b16-12-/t19-/m1/s1