Amino Acid Derivatives

tert-butyl N-[1-methyl-2-oxo-2-(1-phenyl-3,4-dihydro-1H-pyrrolo[1,2-a]pyrazin-2-yl)ethyl]carbamate

2-tert-butoxycarbonyl-6-ethylsulfonyl-3,4-dihydro-1H-isoquinoline-1-carboxylic acid

tert-butyl 3-[(2S)-2-(tert-butoxycarbonylamino)-3-methoxy-3-oxo-propyl]pyrazole-1-carboxylate

(2S)-2-(benzyloxycarbonylamino)-2-(6'-fluorospiro[cyclopropane-1,2'-indane]-1'-yl)acetic acid

(4-methoxyphenyl)methyl (6R,7R)-7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

(4-methoxyphenyl)methyl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

tert-butyl 4-[2-ethoxy-2-oxo-1-(4-oxo-1-piperidyl)ethyl]piperidine-1-carboxylate

(2S)-2-[(5S)-1-tert-butoxycarbonyl-10-oxo-1,9-diazaspiro[4.5]decan-9-yl]-4-methyl-pentanoic acid

(3aS,7aS)-2-[(2S)-1-tert-butoxycarbonylpyrrolidine-2-carbonyl]-1,3,3a,4,6,7-hexahydropyrano[3,4-c]pyrrole-7a-carboxylic acid

O1-benzyl O2-methyl trans-3-(2,6-dimethylphenyl)pyrrolidine-1,2-dicarboxylate

(2S,5S)-1-(9H-fluoren-9-ylmethoxycarbonyl)-5-hydroxy-piperidine-2-carboxylic acid

dibenzyl (2S)-4-oxopiperidine-1,2-dicarboxylate

(2S)-2-(benzyloxycarbonylamino)-2-spiro[chromane-3,1'-cyclopropane]-4-yl-acetic acid

(2S)-2-[(5R)-7-tert-butoxycarbonyl-1-oxo-2,7-diazaspiro[4.4]nonan-2-yl]-2-cyclopentyl-acetic acid

tert-butyl 7-[1-(cyclopropylmethyl)-2-methoxy-2-oxo-ethyl]-6-oxo-1,7-diazaspiro[4.4]nonane-1-carboxylate

1-(1-tert-butoxycarbonylpyrrolidine-3-carbonyl)-2,3,3a,4,5,6,7,7a-octahydroindole-2-carboxylic acid