InChI=1S/C24H34O4/c1-13(25)15-11-19(28)24(6)14-7-8-17-21(2,3)18(27)9-10-22(17,4)20(14)16(26)12-23(15,24)5/h15,17-18,27H,7-12H2,1-6H3/t15-,17+,18+,22+,23-,24-/m1/s1