Using OC1(C2Cc3cccc(F)c3O2)CCNCC1, O=C1CCC(=O)N1Br to produce OC1(C2Cc3cc(Br)cc(F)c3O2)CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.