New enzymatic strategies for the preparation of pharmaceutically important enantiomeric β-amino acid derivatives

The present Ph.D. work has been planned to accomplish two major goals. In view of the significance of fluorine-substituted compounds, the first aim was to synthesize a selection of (±)-β-amino carboxylic ester hydrochloride salts 3a–e, then to generate an appropriate lipase-catalyzed method for their resolution through hydrolysis, furnishing enantiopure new β-fluorophenyl-substituted β-amino acids (S)-5a–e and unreacted β-amino esters (R)-4a–e. The second objective of my work was a comparative investigation of different green strategies and then to build an environmentally benign CALB-catalyzed hydrolysis of cis carbocyclic amino esters 6–9