Using COc1ccccc1N1CCN(CCCl)CC1, Nc1ccccc1OC(F)(F)F to produce COc1ccccc1N1CCN(CCNc2ccccc2OC(F)(F)F)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.