Using COC(=O)CBr, CC(C)(C)OC(=O)Nc1ccc(F)c(F)c1 to produce COC(=O)CN(C(=O)OC(C)(C)C)c1ccc(F)c(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.