3-benzyloxycarbonylamino-4-cyclohexylmethyl-2-oxazolidinone-5-carboxylic acid methyl ester

3(S)-[1(S)-ethoxycarbonyl-3-cyclohexylpropyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetic acid

tert-butyl 3(R)-[1(S)-ethoxycarbonyl-3-cyclohexylpropyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate

(R)-2-((R)-5-tert-Butoxycarbonylmethyl-4-oxo-2,3,4,5-tetrahydro-benzo[b][1,4]thiazepin-3-ylamino)-4-cyclohexyl-butyric acid ethyl ester

tert-butyl 3(S)-[1(S)-benzyloxycarbonyl-3-cyclohexylpropyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate