InChI=1S/C27H44O4/c1-16(15-28)6-5-7-17(2)20-8-9-21-25-22(14-24(31)27(20,21)4)26(3)11-10-19(29)12-18(26)13-23(25)30/h12,16-17,20-25,28,30-31H,5-11,13-15H2,1-4H3/t16?,17-,20-,21+,22+,23-,24+,25+,26+,27-/m1/s1