Using CCN1CCCC1CN, O=C(O)c1ccc2c(c1)C(=O)C1(CC1)O2 to produce CCN1CCCC1CNC(=O)c1ccc2c(c1)C(=O)C1(CC1)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.