Using CCOCCl, O=c1cc(-c2ccccc2Cl)[nH]c(=O)n1-c1ccc(OC(F)(F)F)cc1 to produce CCOCn1c(-c2ccccc2Cl)cc(=O)n(-c2ccc(OC(F)(F)F)cc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.