InChI=1S/C20H28O5S/c1-16(12-14-21)7-5-9-18(15-25-26(22,23)24)10-11-19-17(2)8-6-13-20(19,3)4/h5,7,9-12,14H,6,8,13,15H2,1-4H3,(H,22,23,24)/b7-5+,11-10+,16-12+,18-9-