InChI=1S/C22H42O7/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-28-22-19(25)17(23)18(24)20(29-22)21(26)27/h17-20,22-25H,2-16H2,1H3,(H,26,27)