InChI=1S/C26H32O4/c1-15(2)7-9-17-19-13-22-20(12-21(19)24(29-6)14-23(17)28-5)18-10-8-16(27)11-25(18)30-26(22,3)4/h7-8,10-11,14,20,22,27H,9,12-13H2,1-6H3