Using Cc1cccc(CCBr)c1, CNCCCC(C(N)=O)(c1ccccc1)c1ccccc1 to produce Cc1cccc(CCN(C)CCCC(C(N)=O)(c2ccccc2)c2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.