Using O=Cc1ccc(C(=O)O)cc1, NC1CCN(Cc2ccccc2)CC1 to produce O=Cc1ccc(C(=O)NC2CCN(Cc3ccccc3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.