InChI=1S/C27H30O5/c1-14-11-18(28)7-9-25(5)20(14)8-10-26(6)23(25)21(29)12-15(2)27(26)13-19-22(32-27)16(3)17(4)31-24(19)30/h7,9,11-12,20,23H,8,10,13H2,1-6H3/t20-,23+,25-,26+,27-/m0/s1