InChI=1S/C17H20O11/c18-9(7-17(26,16(24)25)6-8-4-2-1-3-5-8)27-15-12(21)10(19)11(20)13(28-15)14(22)23/h1-5,10-13,15,19-21,26H,6-7H2,(H,22,23)(H,24,25)