Using CN(C(=O)c1ccc(Cl)c(Br)c1)c1ccccc1O, COC(=O)CBr to produce COC(=O)COc1ccccc1N(C)C(=O)c1ccc(Cl)c(Br)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.