Using O=C(Cc1cn(Cc2ccc(F)cc2)c2ccccc12)OCc1ccc(F)cc1 to produce O=C(O)Cc1cn(Cc2ccc(F)cc2)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.