Using O=C1NC(=O)c2ccccc21, Fc1ccc(C(CCCBr)c2ccc(F)cc2)cc1 to produce O=C1c2ccccc2C(=O)N1CCCC(c1ccc(F)cc1)c1ccc(F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.