InChI=1S/C27H32O7/c1-23(2)26(29)11-9-24(3)21(25(26)10-12-27(23,30)32-15-25)13-18-19(28)14-20(33-22(18)34-24)16-5-7-17(31-4)8-6-16/h5-8,14,21,29-30H,9-13,15H2,1-4H3