Using CCOC(=O)C(=O)CC(=O)c1cn(Cc2cccc(Cl)c2)nc1C to produce Cc1nn(Cc2cccc(Cl)c2)cc1C(=O)CC(=O)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.