Using C=C(C)c1nc(CCC)n(Cc2ccc(-c3ccccc3C(=O)C(=O)OC)cc2)c1C(=O)OCC to produce C=C(C)c1nc(CCC)n(Cc2ccc(-c3ccccc3C(=O)C(=O)O)cc2)c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.