Using O=C([C@@H]1CCCN1)N1CCCC1, O=C(O)CCCN1C(=O)c2ccccc2C1=O to produce O=C([C@@H]1CCCN1C(=O)CCCN1C(=O)c2ccccc2C1=O)N1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.