InChI=1S/C20H26O5/c1-19(2)7-4-8-20(3)14(6-5-12-9-15(22)25-11-12)13(10-21)16(23)17(24)18(19)20/h5-6,9,14,18,21,23H,4,7-8,10-11H2,1-3H3/b6-5+/t14-,18-,20+/m0/s1