InChI=1/C15H17FN2O3S/c16-11-5-6-14-12(9-11)13(7-8-22(14,20)21)17-18-15(19)10-3-1-2-4-10/h5-6,9-10H,1-4,7-8H2,(H,18,19)/b17-13-/f/h18H 533664748B0D7A0B