Using CS(=O)(=O)OCCc1ccccc1CNC(=O)OCc1ccccc1, [N-]=[N+]=[N-] to produce [N-]=[N+]=NCCc1ccccc1CNC(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.