InChI=1S/C27H32O5/c1-14(2)7-9-17-21(28)12-22-23(26(17)30-6)27-20(13-31-22)19-11-16(5)24(29)18(25(19)32-27)10-8-15(3)4/h7-8,11-12,20,27-29H,9-10,13H2,1-6H3/t20-,27+/m0/s1