InChI=1S/C27H32O5/c1-16(2)7-8-20-23(29-5)14-24-21(25(20)30-6)13-17(15-31-24)18-9-10-22(28)19-11-12-27(3,4)32-26(18)19/h7,9-12,14,17,28H,8,13,15H2,1-6H3