Using O=C(O)Cc1ccc(Cl)cc1, CCOC(=O)c1cc(C(C)=O)c(=O)[nH]c1C(=O)OCC to produce CCOC(=O)c1cc2c(C)c(-c3ccc(Cl)cc3)c(=O)oc2nc1C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.