InChI=1S/C23H23ClN2O4S/c1-3-11-25-23-26(18-7-5-4-6-15(18)2)22(29)20(31-23)14-16-8-9-19(17(24)13-16)30-12-10-21(27)28/h4-9,13-14H,3,10-12H2,1-2H3,(H,27,28)/b20-14-,25-23-