InChI=1/C21H18ClNO4/c1-2-27-21(26)20(25)11-19(24)17-13-23(12-14-6-4-3-5-7-14)18-9-8-15(22)10-16(17)18/h3-11,13,25H,2,12H2,1H3/p-1/b20-11-/fC21H17ClNO4/h25h/q-1 57C5544CC71236F1