InChI=1S/C22H38O9/c23-16(24)14-12-10-8-6-4-2-1-3-5-7-9-11-13-15-30-22-19(27)17(25)18(26)20(31-22)21(28)29/h10,12,17-20,22,25-27H,1-9,11,13-15H2,(H,23,24)(H,28,29)/b12-10-