InChI=1S/C20H34O6/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/h1,5,11-12,15-19,21-24H,2-4,6-10,13-14H2,(H,25,26)/b5-1-,12-11+/t15-,16?,17?,18-,19+/m0/s1