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