text:  The transfer of acylated amines is more difficult than that of unsubstituted amines , although , unlike amine transfer by <unk> , there are no alternative methods that directly transfer acylated amines . <unk> transfer has primarily been performed using amines and <unk> as nucleophiles . Very few transfers of acylated nitrogens to carbon nucleophiles have been successfully performed , although some do exist in the literature . 
  