104754-51-0
N-benzyloxycarbonyl-2-aminotetrahydro-5-oxo-2-furancarboxylic acid
→
104754-53-2
N-benzyloxycarbonyl-α-benzyl-(Z)-α,β-dehydroglutamate
116447-40-6
3-oxo-2-azabicyclo[3.1.0]hexane-1-carboxylic acid