Using CCNN, O=C(CC(=O)C1CCN(Cc2ccccc2)CC1)Cc1ccc(F)c(F)c1 to produce CCn1nc(Cc2ccc(F)c(F)c2)cc1C1CCN(Cc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.