InChI=1S/C19H20ClNO8/c1-8-10(21-11-5-3-2-4-9(11)17(25)26)6-7-12(13(8)20)28-19-16(24)14(22)15(23)18(27)29-19/h2-7,14-16,18-19,21-24,27H,1H3,(H,25,26)