InChI=1S/C20H26O5/c1-5-19(23)11(2)6-7-13-12(15(19)21)10-20(24)17(13,3)9-8-14-18(20,4)16(22)25-14/h5,12-14,23-24H,1-2,6-10H2,3-4H3