InChI=1/C13H15FN2O3S/c1-16(9-3-4-9)20(18,19)12-6-8-2-5-13(17)15-11(8)7-10(12)14/h6-7,9H,2-5H2,1H3,(H,15,17)/f/h15H 3B9D644C834E6B6C