Using COc1cccc(OC)c1C(O)C(Cl)(Cl)C(F)(F)F, CC(=O)OC(C)=O to produce COc1cccc(OC)c1C(OC(C)=O)C(Cl)(Cl)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.