81811-83-8 Ethanethioic acid, ((1-oxo-3-phenylpropyl)amino)-, O-methyl ester N-(3-Phenylpropionyl)glycine methylthio ester N-(beta-Phenylpropionyl)glycine methylthio ester Nppgmte O-Methyl ((1-oxo-3-phenylpropyl)amino)ethanethioate