Using CCOC(=O)c1cc2cc(Cl)cc(C)c2nc1NC(Cc1c[nH]c2ccccc12)C(=O)O to produce Cc1cc(Cl)cc2cc(C(=O)O)c(NC(Cc3c[nH]c4ccccc34)C(=O)O)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.