InChI=1S/C25H34O7S/c1-8-14(2)22(27)31-21-20-15(3)23(28)32-25(20,29-6)13-17-9-10-18(16(4)24(17,21)5)30-19(26)11-12-33-7/h8,11-12,16-18,21H,9-10,13H2,1-7H3/b12-11+,14-8-