InChI=1/C14H13FN2O2S/c15-10-7-9(8-12-13(18)16-14(19)20-12)3-4-11(10)17-5-1-2-6-17/h3-4,7-8H,1-2,5-6H2,(H,16,18,19)/b12-8+/f/h16H 5B04F09562760B6B