(S)-1-(benzyloxycarbonyl)-5-[(tert-butyldimethylsilyl)oxymethyl]-2-pyrrolidinone

(S)-(S)-1-((benzyloxy)carbonyl)-5-oxopyrrolidine-2-carboxylic (ethyl carbonic) anhydride

benzyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate

甲醇

(2S)-2-(羟基甲基)-1-吡咯烷甲酰胺