Using COCCOCc1cn(Cc2ccc(F)cc2)c2cnc(C(=O)OC)cc12 to produce COCCOCc1cn(Cc2ccc(F)cc2)c2cnc(C(=O)O)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.