Using O=C(c1ccccc1)C(F)CC(F)N1CCC(O)(c2ccc(Cl)cc2)CC1, NCc1ccccc1 to produce O=C(c1ccccc1)C(CC(F)N1CCC(O)(c2ccc(Cl)cc2)CC1)NCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.