Using COc1ccc(-c2cc(N=[N+]=[N-])n3c(c2)nc2ccccc23)cc1 to produce COc1ccc(-c2cc(N)n3c(c2)nc2ccccc23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.