InChI=1S/C20H32O7/c1-14(21)7-6-8-15(25-24)11-12-17-16(18-13-19(17)27-26-18)9-4-2-3-5-10-20(22)23/h2,4,11-12,14-19,21,24H,3,5-10,13H2,1H3,(H,22,23)/b4-2-,12-11+/t14?,15-,16+,17+,18-,19+/m0/s1