Using N#Cc1cnc2ccc(N)cc2c1Nc1cccc(Br)c1, O=C(O)C#CCN1CCOCC1 to produce N#Cc1cnc2ccc(NC(=O)C#CCN3CCOCC3)cc2c1Nc1cccc(Br)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.