Using O=C(O)C(F)(F)F, CC(C)(C)OC(=O)N1CCN(c2ccc(C=O)nc2)CC1 to produce CC(=O)N1CCN(c2ccc(C=O)nc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.