Using COS(=O)(=O)OC, COc1cc(Cl)cc(Cn2c(=O)cc(C(F)(F)F)[nH]c2=O)c1Cl to produce COc1cc(Cl)cc(Cn2c(=O)cc(C(F)(F)F)n(C)c2=O)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.