InChI=1S/C17H19NO9/c19-11-12(20)14(16(24)25)27-17(13(11)21)26-10(15(22)23)6-8-5-7-3-1-2-4-9(7)18-8/h1-5,10-14,17-21H,6H2,(H,22,23)(H,24,25)