InChI=1S/C22H24O7/c23-17-18(24)20(21(26)27)29-22(19(17)25)28-14-8-4-7-13(11-14)16-10-9-15(16)12-5-2-1-3-6-12/h1-8,11,15-20,22-25H,9-10H2,(H,26,27)