| abstract |
The invention discloses a process for enantiomeric enrichment of 2',6'-pipecoloxylidide using a chiral carbamoyl benzoic acid to provide (S)-enantiomer in high yield and high enantiomeric purity. The invention also discloses novel intermediates formed in the process of enantiomeric enrichment of 2',6'-pipecoloxylidide, preparation of N- substituted amidic acids and alkylation of 2',6'-pipecoloxylidide. |