InChI=1S/C22H38O9/c1-2-3-4-5-6-9-12-15(13-10-7-8-11-14-16(23)24)30-22-19(27)17(25)18(26)20(31-22)21(28)29/h9,12,15,17-20,22,25-27H,2-8,10-11,13-14H2,1H3,(H,23,24)(H,28,29)/b12-9-