InChI=1S/C16H17NO8/c1-6-2-3-7-8(6)4-17-5-9(7)15(23)25-16-12(20)10(18)11(19)13(24-16)14(21)22/h4-5,10-13,16,18-20H,1-3H2,(H,21,22)