InChI=1S/C22H24O7/c1-13(14-7-3-2-4-8-14)11-12-15-9-5-6-10-16(15)28-22-19(25)17(23)18(24)20(29-22)21(26)27/h2-10,17-20,22-25H,1,11-12H2,(H,26,27)