InChI=1S/C26H28O8/c1-15(2)6-7-18-12-16(13-20(32-4)22(18)27)14-26(25(30)33-5)21(23(28)24(29)34-26)17-8-10-19(31-3)11-9-17/h6,8-13,27-28H,7,14H2,1-5H3/t26-/m1/s1