InChI=1S/C16H13ClN2O2S/c17-13-7-9-6-12(19-16(9)22-13)15(21)18-11-5-8-3-1-2-4-10(8)14(11)20/h1-4,6-7,11,14,19-20H,5H2,(H,18,21)/t11-,14-/m1/s1