(R)-N-(tert-butoxycarbonyl)-5-formylpyrrolidin-2-one

N-(tert-butoxycarbonyl)-2-[(tert-butyldimethylsilyl)oxy]pyrrole

(1'S,2R,4''R)-2-[(2,2-dimethyl-[1,3]dioxolan-4-yl)hydroxymethyl]-5-oxo-2,5-dihydro-1H-pyrrole-1-carboxylic acid tert-butyl ester

tert-butyl (2R)-2-<<(tert-butyl)dimethylsilyloxy>methyl>-5-oxopyrrolidine-1-carboxylate

2-氧代-2,5-二氢-吡咯-1-羧酸叔丁酯