InChI=1S/C24H34O5/c1-8-16(3)20(25)17(4)14-15(2)12-10-9-11-13-24(7)19(6)23(28)29-21(24)18(5)22(26)27/h8-14,18-21,25H,1-7H3,(H,26,27)/t18-,19+,20?,21+,24-/m1/s1