InChI=1/C20H16FNO4S/c1-27-18-5-3-2-4-15(18)22-19(23)12-25-20(24)17-11-10-16(26-17)13-6-8-14(21)9-7-13/h2-11H,12H2,1H3,(H,22,23)/f/h22H 01A5F72EC00272E2