InChI=1/C18H16ClNO4/c1-12-2-5-14(6-3-12)24-16-7-4-13(19)10-15(16)20-18(21)17-11-22-8-9-23-17/h2-7,10-11H,8-9H2,1H3,(H,20,21)/f/h20H D72A6145A7C9CE3F