Using O=C(O)c1cc2ncc(Br)cn2n1, CC1NCCc2ccc(F)cc21 to produce CC1c2cc(F)ccc2CCN1C(=O)c1cc2ncc(Br)cn2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.