InChI=1S/C17H20O11/c1-25-13-7(3-5-8(18)14(13)26-2)4-6-9(19)27-17-12(22)10(20)11(21)15(28-17)16(23)24/h3-6,10-12,15,17-18,20-22H,1-2H3,(H,23,24)