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(S)-2-((tert-butoxycarbonyl)amino)-2,3-dimethylbutanoic acid

(R)-2-((tert-butoxycarbonyl)amino)-2,3-dimethylbutanoic acid

(R)-2-((((9h-fluoren-9-yl)methoxy)carbonyl)amino)-4,4,4-trifluorobutanoic acid

(R)-2-amino-4,4,4-trifluorobutanoic acid

Fmoc-3-(1-morpholinyl)-l-ala-oh

(S)-2-amino-3-morpholinopropanoic acid

(R)-2-((((9h-fluoren-9-yl)methoxy)carbonyl)amino)-3-morpholinopropanoic acid

(R)-2-amino-3-morpholinopropanoic acid

(S)-2-(((benzyloxy)carbonyl)amino)-3-morpholinopropanoic acid

Methyl (r)-2-(((benzyloxy)carbonyl)amino)-3-morpholinopropanoate