Using O=C(N1CCOCC1)C(F)(F)F, CC(C)(C)OC(=O)Nc1cccc(Cl)n1 to produce CC(C)(C)OC(=O)Nc1nc(Cl)ccc1C(=O)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.