InChI=1/C21H16FN2O4S/c22-18-8-4-5-9-20(18)29(26,27)23-15-10-11-19-17(14-15)21(25)24(12-13-28-19)16-6-2-1-3-7-16/h1-11,14H,12-13H2/q-1 63B2DA2D58062C43