InChI=1S/C20H20FN3O2S/c1-22-19-9-6-14(12-23-19)4-2-3-5-20-24-17-8-7-16(10-18(17)27-20)26-13-15(25)11-21/h2-10,12,15,25H,11,13H2,1H3,(H,22,23)/b4-2+,5-3+/i21-1