Using CC1=C(C)C(=O)C(Cc2ccc(CCC(=O)O)cc2)=C(C)C1=O, CC(C)N to produce CC1=C(C)C(=O)C(Cc2ccc(CCC(=O)NC(C)C)cc2)=C(C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.