InChI=1/C17H17NO4S/c1-11-3-6-15(7-4-11)23(21,22)18-12(2)9-14-10-13(17(19)20)5-8-16(14)18/h3-8,10,12H,9H2,1-2H3,(H,19,20)/p-1/t12-/m1/s1/fC17H16NO4S/q-1 6CC5B59C8C23123C