InChI=1S/C20H28O6/c1-10-6-19-9-20(10,26)5-4-12(19)17(2)7-11(21)8-18(3,16(24)25)14(17)13(19)15(22)23/h11-14,21,26H,1,4-9H2,2-3H3,(H,22,23)(H,24,25)