(2,2,4,4-tetramethyl-3-oxocyclobutyl) propanoate

7-溴-2-乙基-噁唑并[4,5-C]吡啶

N-(5-bromo-4-hydroxy-[3]pyridyl)-propionamide

3-propionyl-2-oxazolidinone

[ethoxycarbonyl(propanoyl)amino] propanoate