Using COC(=O)c1c(Cl)ccc2c(Nc3cccc(C(F)(F)F)c3)noc12 to produce O=C(O)c1c(Cl)ccc2c(Nc3cccc(C(F)(F)F)c3)noc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.