InChI=1S/C20H32O7/c1-2-3-5-8-14(25-24)11-12-15-17-13-18(27-26-17)20(15)16(21)9-6-4-7-10-19(22)23/h6,9,11-12,14-18,20-21,24H,2-5,7-8,10,13H2,1H3,(H,22,23)/b9-6-,12-11+/t14-,15-,16?,17+,18-,20-/m0/s1