InChI=1S/C28H46O2/c1-17(2)18(3)15-26(30)19(4)23-9-10-24-22-8-7-20-16-21(29)11-13-27(20,5)25(22)12-14-28(23,24)6/h16-19,22-26,30H,7-15H2,1-6H3/t18-,19+,22?,23?,24?,25?,26+,27+,28-/m1/s1