InChI=1S/C20H30O6/c21-13-7-3-4-8-15(22)11-12-17-16(18(23)14-19(17)24)9-5-1-2-6-10-20(25)26/h1,5,11-13,15-17,19,22,24H,2-4,6-10,14H2,(H,25,26)/b5-1-,12-11+