7-(tert-butyl) 1-methyl (1R,2R,4S)-2-(((R)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoyl)oxy)-7-azabicyclo[2.2.1]heptane-1,7-dicarboxylate

(1R)-10,10-dimethyl-3,3-dioxo-3λ6-thia-4-aza-tricyclo[5.2.1.01,5]decane-4-carboxylic acid-(2-oxo-cyclohex-3-enyl)-amide

(S)-((5-oxopyrrolidin-2-yl)methyl)zinc(II) iodide

(S)-5-[4-(trimethylsilyl)but-2-ynyl]pyrrolidin-2-one

(5S)-tert-butyl 2-hydroxy-5-(4-(trimethylsilyl)but-2-yn-1-yl)pyrrolidine-1-carboxylate