tert.-butyl (4S)-1-benzyl-3-[(2S)-3-benzoylthio-2-methylpropionyl]-2-oxo-imidazolidine-4-carboxylate 以
三氟乙酸 为溶剂,
以24.1 g of (4S)-1-benzyl-3-[(2S)-3-benzoylthio-2-methylpropionyl]-2-oxo-imidazolidine-4-carboxylic acid are obtained as colorless crystals的产率得到(4S)-1-benzyl-3-[(2S)-3-benzoylthio-2-methylpropionyl]-2-oxo-imidazolidine-4-carboxylic acid