N-[3(RS)-(N-formyl-N-hydroxyamino)-1-oxo-2-benzylpropyl]glycine isopentylamide

{(S)-6-[(R)-2-(Benzyloxyamino-methyl)-3-phenyl-propionylamino]-2,2-dimethyl-7-oxo-azepan-1-yl}-acetic acid ethyl ester

{(S)-3-[(R)-2-(Benzyloxyamino-methyl)-3-phenyl-propionylamino]-2-oxo-2,3,4,5-tetrahydro-benzo[b]azepin-1-yl}-acetic acid ethyl ester