(2R,3S)-3-Amino-2-hydroxy-N-(2-morpholin-4-yl-ethyl)-4-phenyl-butyramide

4-Oxo-4H-chromene-2-carboxylic acid ((1S,2R)-1-benzyl-2-carbamoyl-2-hydroxy-ethyl)-amide

3-Methyl-4-oxo-4H-chromene-2-carboxylic acid ((1S,2R)-1-benzyl-2-carbamoyl-2-hydroxy-ethyl)-amide

3-Methyl-4-oxo-4H-chromene-2-carboxylic acid ((1S,2R)-1-benzyl-2-hydroxy-2-isopropylcarbamoyl-ethyl)-amide

3-Ethyl-4-oxo-4H-chromene-2-carboxylic acid ((1S,2R)-1-benzyl-2-carbamoyl-2-hydroxy-ethyl)-amide