InChI=1S/C20H32O6/c1-3-4-7-10-16(22)13-14-18(20(25)26)17(15(2)21)11-8-5-6-9-12-19(23)24/h5,8,13-14,16-18,22H,3-4,6-7,9-12H2,1-2H3,(H,23,24)(H,25,26)/b8-5-,14-13+