Using FC(F)(F)CNCCc1ccccc1, O=C(Cl)c1cc(Cl)ncn1 to produce O=C(c1cc(Cl)ncn1)N(CCc1ccccc1)CC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.