InChI=1S/C18H18F2N2O6S2/c19-14-2-1-3-15(20)18(14)30(25,26)22-8-6-21(7-9-22)29(23,24)13-4-5-16-17(12-13)28-11-10-27-16/h1-5,12H,6-11H2