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