Using COCCCl, O=Cc1cc2c(Nc3cccc(Cl)c3F)ncnc2cc1O to produce COCCOc1cc2ncnc(Nc3cccc(Cl)c3F)c2cc1C=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.