Using O=P(Cl)(Cl)Cl, CCSc1nc2cc(C(F)(F)F)ccc2c(O)c1C(=O)NCc1cccc(F)c1 to produce CCSc1nc2cc(C(F)(F)F)ccc2c(Cl)c1C(=O)NCc1cccc(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.