Using CS(=O)(=O)OCC1CCN(c2ccccc2)C(=O)C1, [N-]=[N+]=[N-] to produce [N-]=[N+]=NCC1CCN(c2ccccc2)C(=O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.