Using CN(NC(=O)OCc1ccccc1)C(=O)OCc1ccccc1, N#Cc1ccc(CBr)cc1 to produce CN(C(=O)OCc1ccccc1)N(Cc1ccc(C#N)cc1)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.