InChI=1/C16H19NO4S/c1-11(18)22-14-8-6-12(7-9-14)16(21)17(10-15(19)20)13-4-2-3-5-13/h6-9,13H,2-5,10H2,1H3,(H,19,20)/p-1/fC16H18NO4S/q-1 663381338838D8DC