InChI=1S/C23H26O7/c1-12(2)4-6-15-21(27)14(8-9-24)22(28)20-17(26)11-18(30-23(15)20)13-5-7-16(25)19(10-13)29-3/h4-5,7,10,18,24-25,27-28H,6,8-9,11H2,1-3H3/t18-/m0/s1