A convenient asymmetric synthesis of (2S)-2-amino-3-(2-fluoro-5-hydroxyphenyl) propanoic acid,(2S)-2-amino-3-(4-fluoro-3-hydroxyphenyl) propanoic acid and (2S)-2-amino-3-(2- fluoro-4-hydroxyphenyl) propanoic acid is described. Key steps include the synthesis of the benzyl bromides, the alkylation of the glycine enolate derivative ((S)-Boc-BMI) and the hydrolysis of the alkylated Boc-BMI.