InChI=1S/C28H46O4/c1-14(2)15(3)25(30)26(31)16(4)18-7-8-19-17-11-22(29)21-12-23-24(32-23)13-28(21,6)20(17)9-10-27(18,19)5/h14-21,23-26,30-31H,7-13H2,1-6H3