Using O=C(O)[C@H]1CCCc2ccccc21, CCOC(=O)C1(N)Cc2ccccc2C1 to produce CCOC(=O)C1(NC(=O)[C@H]2CCCc3ccccc32)Cc2ccccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.