InChI=1/C17H14N2O3S/c1-10-4-2-3-5-11(10)16(20)19-17-18-12-8-13-14(9-15(12)23-17)22-7-6-21-13/h2-5,8-9H,6-7H2,1H3,(H,18,19,20)/f/h19H 6F593F3B1C25FD7A