Using CC(C)(C)OC(=O)c1ccc(NC2CCc3cc(NC(=O)COCc4ccccc4)c(Br)cc32)cc1, N#C[Cu] to produce CC(C)(C)OC(=O)c1ccc(NC2CCc3cc(NC(=O)COCc4ccccc4)c(C#N)cc32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.