Using COCC(=O)Cl, COc1nn(-c2cccc(N)c2)c(=O)n(Cc2ccc(Cl)cc2)c1=O to produce COCC(=O)Nc1cccc(-n2nc(OC)c(=O)n(Cc3ccc(Cl)cc3)c2=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.