Using O=[N+]([O-])O, CC1(c2ccc(Cl)cc2)OC(=O)Nc2ccccc21 to produce CC1(c2ccc(Cl)cc2)OC(=O)Nc2ccc([N+](=O)[O-])cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.