HCID 71184307, compound → (3R)-3-amino-4-(2,4,5-trifluorophenyl)butanoic Acid

Participants

Reaction Steps

To a solution of 3 g (S)-methyl 3-(dibenzylamino)-4-oxo-4-(2,4,5-trifluorophenyl)butanoate in 100 ml ethanol, was added 0.5 g of 10% Pd/C under an atmosphere of nitrogen. The atmosphere of nitrogen was replace with an atmosphere of hydrogen, and the reaction was carried out at 25° C. for 5 h. After completion of the reaction, the reaction mixture was filtered through diatomite. The filtrate was concentrated, and the pH was adjusted to 5˜6 by addition of 10% hydrochloric acid. The aqueous layer was washed with ethyl acetate, and then concentrated to obtain 1.47 g (R)-3-amino-4-(2,4,5-trifluorophenyl)butanoic acid as white solid, with a yield of 93.2%.

Provenance & Evidence