英文同义词: | (R)-3-Hydroxy-2-Methyl-5-oxo-2,5-dihydro-pyrrole-1-carboxylic acid tert-butyl ester;(R)-tert-Butyl 3-hydroxy-2-Methyl-5-oxo-2,5-dihydro-1H-pyrrole-1-carboxylate;1H-Pyrrole-1-carboxylic acid, 2,5-dihydro-3-hydroxy-2-methyl-5-oxo-, 1,1-dimethylethyl ester, (2R)- |