InChI=1S/C27H26N2O7S2/c1-28(2)20-9-5-17(6-10-20)25(18-7-11-21(12-8-18)29(3)4)26-23-14-13-22(37(31,32)33)15-19(23)16-24(27(26)30)38(34,35)36/h5-16H,1-4H3,(H2,31,32,33,34,35,36)