InChI=1/C13H12FN3O3S/c14-9-3-1-6-12(7-9)21(19,20)17-11-5-2-4-10(8-11)16-13(15)18/h1-8,17H,(H3,15,16,18)/f/h16H,15H2 0F3CB4F72D2B79FC