Using O=C(O)Cc1ccccc1, Nc1c[nH]c2ncc(Br)c(F)c12 to produce O=C(Cc1ccccc1)Nc1c[nH]c2ncc(Br)c(F)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.