Using NCCNc1c(Cl)ccc2c1CCN(C(=O)C(F)(F)F)CC2, O=C(Cl)c1ccccc1 to produce O=C(NCCNc1c(Cl)ccc2c1CCN(C(=O)C(F)(F)F)CC2)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.