InChI=1S/C20H26O5/c1-10-7-20-8-11(10)3-4-12(20)19-6-5-13(21)18(2,17(24)25-9-19)15(19)14(20)16(22)23/h11-15,21H,1,3-9H2,2H3,(H,22,23)