InChI=1S/C21H30O5S/c1-2-13-21(26-27(23,24)25)17-11-9-7-5-3-4-6-8-10-14-19-15-12-16-20(22)18-19/h2,7,9,11-12,15-18,21-22H,1,3-6,8,10,13-14H2,(H,23,24,25)/b9-7+,17-11?