Using [N-]=[N+]=[N-], CCOc1cc(CBr)c(C#N)cc1C(=O)OC(C)(C)C to produce CCOc1cc(CN=[N+]=[N-])c(C#N)cc1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.