InChI=1S/C20H28O5/c1-11-9-19-10-20(11,25)8-5-12(19)17(2)6-4-7-18(3,16(23)24)14(17)13(19)15(21)22/h12-14,25H,1,4-10H2,2-3H3,(H,21,22)(H,23,24)