Using [N-]=[N+]=[N-], CC(C)c1ccc(CNC(=O)c2ccc(OC(=O)C(C)(C)C)cc2)cc1 to produce CC(C)c1ccc(Cn2nnnc2-c2ccc(OC(=O)C(C)(C)C)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.