(R)-4-(tert-Butoxy)-2-(3-fluorophenyl)-4-oxobutanoic acid
4-Morpholino-4-oxobutanoic acid
(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-amino-4-oxobutanoic acid
(R)-3-Amino-4-methoxy-4-oxobutanoic acid
4-(3,4-Dihydroquinolin-1(2H)-yl)-4-oxobutanoic acid
4-Ethoxy-2-methylene-4-oxobutanoic acid
4-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)-4-oxobutanoic acid
(R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-amino-4-oxobutanoic acid
2-Amino-4-(2-formamidophenyl)-4-oxobutanoic acid
2,4-Diamino-4-oxobutanoic acid
4-((4-(2-Chlorophenoxy)phenyl)amino)-4-oxobutanoic acid
(S)-3-Benzyl-4-methoxy-4-oxobutanoic acid
(S)-2,4-Diamino-4-oxobutanoic acid hydrate
(S)-4-Amino-2-(2-aminoacetamido)-4-oxobutanoic acid
(S)-3-(((Benzyloxy)carbonyl)amino)-4-methoxy-4-oxobutanoic acid
3-Amino-4-methoxy-4-oxobutanoic acid
2-Amino-4-(methylamino)-4-oxobutanoic acid
(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(dimethylamino)-4-oxobutanoic acid
(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methoxy-4-oxobutanoic acid
(S)-3-Amino-4-ethoxy-4-oxobutanoic acid
