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