InChI=1S/C27H32O4/c1-16(2)7-9-18-13-21-22-15-30-26-19(10-8-17(3)4)23(28-5)12-11-20(26)27(22)31-25(21)14-24(18)29-6/h7-8,11-14,22,27H,9-10,15H2,1-6H3/t22-,27-/m0/s1