Using O=[N+]([O-])c1cccc(Cl)c1CBr, CC1(C)CONC1=O to produce CC1(C)CON(Cc2c(Cl)cccc2[N+](=O)[O-])C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.