Using Fc1ccc(N(Cc2ccccc2)Cc2ccccc2)c(F)c1, CN(C)C=O to produce O=Cc1c(F)ccc(N(Cc2ccccc2)Cc2ccccc2)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.