InChI=1S/C29H44O3/c1-20(13-9-14-22(3)19-30)11-8-12-21(2)15-10-17-29(7)18-16-26-25(6)27(31)23(4)24(5)28(26)32-29/h11,14-15,30-31H,8-10,12-13,16-19H2,1-7H3/b20-11+,21-15-,22-14-/t29-/m1/s1