InChI=1/C16H21NO4S/c1-10-5-11(2)7-14(6-10)17(8-15(19)20)16(21)12(3)9-22-13(4)18/h5-7,12H,8-9H2,1-4H3,(H,19,20)/p-1/t12-/m1/s1/fC16H20NO4S/q-1 FB505B2328E930BF