Using OC(c1cccc(OCc2ccc(Cl)cc2F)c1OCCF)c1c[nH]c2ncccc12 to produce O=C(c1cccc(OCc2ccc(Cl)cc2F)c1OCCF)c1c[nH]c2ncccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.