Using O=C1CCN(C(=O)OCc2ccccc2)CC1, C[C@H](N)C(=O)OC(C)(C)C to produce C[C@H](NC1CCN(C(=O)OCc2ccccc2)CC1)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.