InChI=1/C18H17FN2O3S/c1-11-8-9-14(10-15(11)19)17-20-18(24-21-17)13(3)25(22,23)16-7-5-4-6-12(16)2/h4-10,13H,1-3H3/t13-/m1/s1 B3D0650F572F4BA7