InChI=1/C19H19FN2O4S/c1-11-13-8-6-9-15(20)18(13)26-17(11)19(23)21-12(2)14-7-4-5-10-16(14)22-27(3,24)25/h4-10,12,22H,1-3H3,(H,21,23)/t12-/m1/s1/f/h21H 16A1765EC950941D