InChI=1S/C20H26N2O8S2/c1-22(2)13-12-21-16-6-4-5-7-17(16)31(25)19(14-8-10-15(29-3)11-9-14)18(20(23)24)30-32(26,27)28/h4-11,18-19,21H,12-13H2,1-3H3,(H,23,24)(H,26,27,28)