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(R)-Boc-2-(trifluoromethyl)-β-Phe-OH

(R)-Boc-3-(2-naphthyl)-β-Ala-OH

(R)-Boc-3-(3-pyridyl)-β-Ala-OH

(R)-Boc-3,4-dimethoxy-β-Phe-OH

(R)-Boc-3-methoxy-β-Phe-OH

(S)-Boc-4-cyano-β-Phe-OH

(S)-Boc-3-cyano-β-Phe-OH

(S)-Boc-3-(trifluoromethyl)-β-Phe-OH

2,3,5,6-Tetrachlorophenyl isocyanate

2-Chloro-4-methylphenyl isocyanate