Using N#C[Cu], CCOC(=O)C(C)(C)Oc1ccc(OCCc2nc(-c3ccc(Br)cc3)oc2C)cc1 to produce CCOC(=O)C(C)(C)Oc1ccc(OCCc2nc(-c3ccc(C#N)cc3)oc2C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.