Using CCN1c2ncc(CCc3cccc(N)c3)cc2C(=O)N(C)c2ccc(Cl)nc21, [N-]=[N+]=[N-] to produce CCN1c2ncc(CCc3cccc(N=[N+]=[N-])c3)cc2C(=O)N(C)c2ccc(Cl)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.