Using Fc1cc2c(cc1F)C(c1ccccc1Cl)=NCC(=S)N2, COCCO to produce COCCOc1cc2c(cc1F)C(c1ccccc1Cl)=NCC(=S)N2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.