Using CCOC(=O)C1=CNC(C(=O)O)Cc2c1[nH]c1ccccc21, C1CCNCC1 to produce CCOC(=O)C1=CNC(C(=O)N2CCCCC2)Cc2c1[nH]c1ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.