Using C[C@@H](Cn1ncc2ccc3c(c21)C(O)C(Br)CO3)NC(=O)OCc1ccccc1, [N-]=[N+]=[N-] to produce C[C@@H](Cn1ncc2ccc3c(c21)C(N=[N+]=[N-])C(Br)CO3)NC(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.