InChI=1S/C24H30O4/c1-15(2)5-9-19-18(11-7-17-8-12-21(25)24(28)13-17)20(10-6-16(3)4)23(27)14-22(19)26/h5-6,8,12-14,25-28H,7,9-11H2,1-4H3