Using COC(=O)C1(N(OCc2ccccc2)C(C)=O)CCN(Cc2ccccc2)CC1 to produce COC(=O)C1(N(OCc2ccccc2)C(C)=O)CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.