Using NCCc1ccc(-n2ccc(C(F)(F)F)n2)cc1Cl, O=C(O)c1ncccc1C(F)(F)F to produce O=C(NCCc1ccc(-n2ccc(C(F)(F)F)n2)cc1Cl)c1ncccc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.