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