InChI=1S/C17H22O11/c1-5-8(19)7(6(2)18)13(26-4)15(12(5)25-3)28-17-11(22)9(20)10(21)14(27-17)16(23)24/h9-11,14,17,19-22H,1-4H3,(H,23,24)