Boc-pentafluoro-D-phenylalanine 

L-2-Fluorophenylalanine 

Boc-D-3-Chlorophenylalanine 

D-Propargylglycine 

Boc-L-Propargylglycine 

Boc-D-Propargylglycine 

Fmoc-L-Propargylglycine 

Fmoc-L-3-(2-Naphthyl)-alanine 

Boc-D-3-(2-Naphthyl)-alanine 

Boc-L-3-(2-Naphthyl)-alanine 

D-3-(2-Naphthyl)-alanine 

L-3-(2-Naphthyl)-alanine 

Fmoc-D-4-Chlorophenylalanine 

Fmoc-L-4-Chlorophenylalanine 

Boc-D-4-Chlorophenylalanine 

Boc-L-4-Chlorophenylalanine 

D-4-Chlorophenylalanine 

L-4-Chlorophenylalanine 

D-2-Fluorophenylalanine 

Boc-L-2-Fluorophenylalanine 

Boc-D-2-Fluorophenylalanine 

Fmoc-L-2-Fluorophenylalanine 

Fmoc-D-2-Fluorophenylalanine 

L-3-Fluorophenylalanine 

L-3,5-Dichlorophenylalanine 

D-3,5-Dichlorophenylalanine 

L-2,5-Dichlorophenylalanine 

D-2,5-Dichlorophenylalanine 

L-2,6-Dichlorophenylalanine 

D-2,6-Dichlorophenylalanine 

L-4-Iodophenylalanine 

D-4-Iodophenylalanine 

Boc-L-4-Iodophenylalanine 

Boc-D-4-Iodophenylalanine 

Boc-L-2,4-Dichlorophenylalanine 

Boc-D-2,4-Dichlorophenylalanine 

Fmoc-L-2,4-Dichlorophenylalanine 

Fmoc-D-2,4-Dichlorophenylalanine 

L-3,4-Dichlorophenylalanine 

D-3,4-Dichlorophenylalanine 

Boc-L-3,4-Dichlorophenylalanine 

Boc-D-3,4-Dichlorophenylalanine 

Fmoc-L-3,4-Dichlorophenylalanine 

Fmoc-D-3,4-Dichlorophenylalanine 

Boc-D-2-Chlorophenylalanine