InChI=1/C14H20N2O3S/c1-10-3-4-13(11(2)7-10)16-14(17)15-8-12-5-6-20(18,19)9-12/h3-4,7,12H,5-6,8-9H2,1-2H3,(H2,15,16,17)/t12-/m1/s1/f/h15-16H 89F2E938E3D9FCEC