Using CC(=O)OCc1c(F)c(N)c2c(=O)cc(-c3ccc(N)c(F)c3)oc2c1F, O=C(O)CCBr to produce CC(=O)OCc1c(F)c(N)c2c(=O)cc(-c3ccc(NC(=O)CCBr)c(F)c3)oc2c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.