Using O=C1NC(=O)c2ccccc21, OC1CCC(c2cc(F)c(Br)cc2F)C1 to produce O=C1c2ccccc2C(=O)N1C1CCC(c2cc(F)c(Br)cc2F)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.