InChI=1S/C20H34O7S/c1-2-3-4-5-10-13-16-19(27-28(24,25)26)18(21)15-12-9-7-6-8-11-14-17-20(22)23/h6,8-10,12-13,18-19,21H,2-5,7,11,14-17H2,1H3,(H,22,23)(H,24,25,26)/b8-6-,12-9-,13-10-