InChI=1S/C27H40O2/c1-17-10-14-27(28-16-17)18(2)24-23(29-27)15-22-20-9-8-19-7-5-6-12-25(19,3)21(20)11-13-26(22,24)4/h5,7-8,17-18,20-24H,6,9-16H2,1-4H3/t17?,18-,20?,21?,22?,23-,24-,25-,26-,27+/m0/s1