InChI=1S/C22H38O9/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15(20(26)27)30-22-18(25)16(23)17(24)19(31-22)21(28)29/h7-8,15-19,22-25H,2-6,9-14H2,1H3,(H,26,27)(H,28,29)/b8-7-