InChI=1S/C20H32O7/c1-2-3-5-8-14(25-24)11-12-16-15(18-13-19(16)27-26-18)9-6-4-7-10-17(21)20(22)23/h4,6,11-12,14-19,21,24H,2-3,5,7-10,13H2,1H3,(H,22,23)/b6-4-,12-11+/t14-,15+,16+,17?,18-,19+/m0/s1