Using COC(=O)C(C)(C=O)NC(=O)OC(C)(C)C, Nc1ccc(F)cc1 to produce COC(=O)C(C)(CNc1ccc(F)cc1)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.