InChI=1S/C29H50O4/c1-7-19(16(2)3)27(33)26(32)17(4)21-8-9-22-20-15-25(31)24-14-18(30)10-12-29(24,6)23(20)11-13-28(21,22)5/h16-24,26-27,30,32-33H,7-15H2,1-6H3/t17-,18+,19-,20?,21?,22?,23?,24+,26+,27+,28+,29+/m0/s1