Synthesis and physical chemical properties of 2-amino-4-(trifluoromethoxy)butanoic acid - a CFO-containing analogue of natural lipophilic amino acids.

2-Amino-2-(trifluoromethoxy)butanoic acid (O-trifluoromethyl homoserine) was synthesized as a racemate and in both enantiomeric forms. The measured pK and log D values establish the compound as a promising analogue of natural aliphatic amino acids.