InChI=1S/C20H21F3O7S/c1-2-28-18(19(24)25)13-15-5-7-16(8-6-15)29-12-11-14-3-9-17(10-4-14)30-31(26,27)20(21,22)23/h3-10,18H,2,11-13H2,1H3,(H,24,25)