(S)-2-Benzyl-succinic acid 4-((1S,2R,6S,7R)-3,5-dioxo-4-aza-tricyclo[5.2.1.02,6]dec-8-en-4-yl) ester 1-((1R,2S,6R,7S)-3,5-dioxo-4-aza-tricyclo[5.2.1.02,6]dec-8-en-4-yl) ester

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

ethyl 4-[(3aR,7aS)-octahydro-2H-isoindol-2-yl]-4-oxo-2-benzyl-2-carbethoxy-butanoate