InChI=1S/C17H22O11/c1-25-12-7(4-3-5-18)6-8(19)13(15(12)26-2)27-17-11(22)9(20)10(21)14(28-17)16(23)24/h3-4,6,9-11,14,17-22H,5H2,1-2H3,(H,23,24)