InChI=1S/C27H42O4/c1-16-23-22(30-27(16)12-11-24(2,15-28)31-27)14-21-19-6-5-17-13-18(29)7-9-25(17,3)20(19)8-10-26(21,23)4/h5,16,18-23,28-29H,6-15H2,1-4H3/t16-,18-,19+,20-,21-,22-,23-,24-,25-,26-,27-/m0/s1