InChI=1S/C19H26O8/c1-8-5-11-12(15(22)9(2)14(11)21)6-10(8)3-4-26-19-18(25)17(24)16(23)13(7-20)27-19/h5-6,9,13-14,16-21,23-25H,3-4,7H2,1-2H3