Using O=C(O)COc1ccc(F)c(NCc2cc(-c3cccc(F)c3)ccc2F)c1F, CC(=O)OC(C)Br to produce CC(=O)OC(C)OC(=O)COc1ccc(F)c(NCc2cc(-c3cccc(F)c3)ccc2F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.