InChI=1S/C25H26O6/c1-14(2)5-4-7-25(3)8-6-15-9-17(18(27)12-21(15)31-25)22-13-20(29)24-19(28)10-16(26)11-23(24)30-22/h5-6,8-12,22,26-28H,4,7,13H2,1-3H3