InChI=1S/C17H20O11/c18-10(19)6-8(15(23)24)5-7-3-1-2-4-9(7)27-17-13(22)11(20)12(21)14(28-17)16(25)26/h1-4,8,11-14,17,20-22H,5-6H2,(H,18,19)(H,23,24)(H,25,26)