Using NC(=O)N1CC(Oc2cccc(C(F)(F)F)c2)C1, CC(=O)OC=O to produce O=CNC(=O)N1CC(Oc2cccc(C(F)(F)F)c2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.