Using Brc1ccccn1, COC(=O)C(C#N)=C1CCOC2(CCCC2)C1 to produce COC(=O)C(C#N)C1(c2ccccn2)CCOC2(CCCC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.