126910-82-5
(S)-α-[(3-ethoxy-1,3-dioxopropyl)amino]cyclohexanepropanoic acid,methyl ester
→
126910-73-4
(S)-5-(cyclohexylmethyl)-2,5-dihydro-4-hydroxy-2-oxo-1H-pyrrole-3-carboxylic acid,ethyl ester