How is (3S)-3-Amino-3-(2,4-dichlorophenyl)propanoic acid (CAS: 757937-66-9) typically synthesized?

(3S)-3-Amino-3-(2,4-dichlorophenyl)propanoic acid can be synthesized via a multi-step process involving the reaction of 2,4-dichlorobenzaldehyde with ammonia to form the corresponding imine, followed by reduction to the amino alcohol and subsequent esterification. This process often requires the use of palladium catalysts and selective reagents to ensure high yield and purity.