InChI=1/C18H16ClNO5/c1-2-24-17(22)12-6-8-15(9-7-12)20-16(21)11-25-18(23)13-4-3-5-14(19)10-13/h3-10H,2,11H2,1H3,(H,20,21)/f/h20H 811532671DA880D2