Using COC(=O)Cc1cc(Cl)c2c(c1)CCC(C(F)(F)F)N2 to produce O=C(O)Cc1cc(Cl)c2c(c1)CCC(C(F)(F)F)N2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.