Using COc1ccc2c(c1)NC(=O)C(Cl)CC2, [N-]=[N+]=[N-] to produce COc1ccc2c(c1)NC(=O)C(N=[N+]=[N-])CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.