InChI=1S/C16H17NO10/c18-8-2-6-5(1-10(19)20)4-17-7(6)3-9(8)26-16-13(23)11(21)12(22)14(27-16)15(24)25/h2-4,11-14,16-18,21-23H,1H2,(H,19,20)(H,24,25)