InChI=1S/C17H19NO9/c19-10(20)5-4-7-6-18-8-2-1-3-9(11(7)8)26-17-14(23)12(21)13(22)15(27-17)16(24)25/h1-3,6,12-15,17-18,21-23H,4-5H2,(H,19,20)(H,24,25)