InChI=1S/C16H17ClN2O3S/c17-13-2-4-14(5-3-13)19-23(21,22)16-6-1-11-7-15(10-20)18-9-12(11)8-16/h1-6,8,15,18-20H,7,9-10H2/t15-/m1/s1