InChI=1S/C17H15NO10S/c1-27-14-8-11(10(17(22)23)7-13(14)20)18-16(21)5-3-9-2-4-12(19)15(6-9)28-29(24,25)26/h2-8,19-20H,1H3,(H,18,21)(H,22,23)(H,24,25,26)