Using O=[N+]([O-])O, CC(=O)N1CCc2c(C)cc(C)cc21 to produce CC(=O)N1CCc2c1cc(C)c([N+](=O)[O-])c2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.