Using CCOC(=O)Cc1c(C(=O)OCC)c(O)cn1C, O=C(Cl)c1ccccc1CCl to produce CCOC(=O)Cc1c(C(=O)OCC)c(O)c(C(=O)c2ccccc2CCl)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.