A method for the preparation of enantiomerically enriched ica n - acyl azetidine - 2 - carboxylic acids

摘要

There is provided a process for obtaining an enantiomerically enriched N-acylazetidine-2-carboxylic acid, which comprises the selective crystallisation of a diastereoisomeric salt formed between the required enantiomer of the N-acylazetidine-2-carboxylic acid and an enantiomer of 1-phenylethylamine.