ethyl 2-chloro-3-hydroxy-3-phenylpropionate

Alpha-乙氧草酰基苯乙酸乙酯

optically inactive 2-cyano-2,3-dihydroxy-3-phenyl-propionic acid

2,2-dihydroxy-3-oxo-4-phenylbutanamide

2,3-Bis(trifluoracetoxy)-3-phenylpropansaeure-trimethylsilylester