InChI=1S/C25H26O7/c1-12(2)5-7-15-22(28)21-19(32-24(15)14-8-6-13(26)9-17(14)27)11-18-16(23(21)29)10-20(31-18)25(3,4)30/h5-6,8-9,11,20,26-27,29-30H,7,10H2,1-4H3