Using Nc1ncc(C(O)(C(F)(F)F)C(F)(F)F)s1, CCOP(=O)(Cl)OCC to produce CCOP(=O)(Nc1ncc(C(O)(C(F)(F)F)C(F)(F)F)s1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.