Using CS(=O)(=O)OC1CCC2(CC1)OC(=O)c1ccccc12, [N-]=[N+]=[N-] to produce [N-]=[N+]=NC1CCC2(CC1)OC(=O)c1ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.