Using N#Cc1ccc(N=Nc2ccc(OCCO)c(Br)c2)cc1, N#C[Cu]C#N to produce N#Cc1ccc(N=Nc2ccc(OCCO)c(C#N)c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.