InChI=1/C16H15N3O3S/c1-11-5-4-6-12(9-11)23(21,22)19-18-16(20)14-10-17-15-8-3-2-7-13(14)15/h2-10,17,19H,1H3,(H,18,20)/f/h18H 3139288CE18CEA74