(3aR,7aS)-2-(bromoacetyl)octahydro-1H-isoindole

(3S)-4-[(3aS,6R,7aS)-tetrahydro-8,8-dimethyl-2,2-dioxido-3a,6-methano-2,1-benzisothiazol-1(4H)-yl]-4-oxo-3-(phenylmethyl)butanoic acid

1,1-dimethylethyl (3S)-4-[(3aS,6R,7aS)-8,8-dimethyl-2,2-dioxidotetrahydro-3a,6-methano-2,1-benzisothiazol-1(4H)-yl]-4-oxo-3-(phenylmethyl)butanoate

4-nitrophenyl (S)-2-benzyl-4-((3aR,7aS)-octahydro-2H-isoindol-2-yl)-4-oxobutanoate

(S)-2-Benzyl-succinic acid bis-(4-nitro-phenyl) ester