(R)-3-methyl-2-((S)-2-oxo-5-phenylmorpholino)butanenitrile

(2R)-2-((5S)-2-hydroxy-5-phenylmorpholino)-3-methylbutanenitrile

4-[(2R,5S)-2,5-Dihydro-2-isopropyl-3,6-dimethoxy-5-pyrazinyl]butyronitrile

D-缬氨酸甲酯盐酸盐

(R)-N-carbamoylvaline