InChI=1S/C27H42O4/c1-16(13-17(2)28)18-9-10-25(6)22-19(29)14-27-20(7-8-21(30)23(27,3)4)26(22,15-31-27)12-11-24(18,25)5/h16,18,20-22,30H,7-15H2,1-6H3/t16?,18-,20+,21+,22+,24-,25+,26-,27-/m1/s1