AN IMPROVED PROCESS FOR THE PREPARATION OF (2S)-2-(4R)-2-OXO-4-PROPYLTETRAHYDRO-1H-PYRROL-1-YL BUTANAMIDE AND ITS INTERMEDIATES THEREOF

摘要

The present invention relates to an improved process for the preparation of (2S)-2- [(4R)-2-oxo-4-propyltetrahydro-1H-pyrrol-1-yl] butanamide compound of formula- 1, its intermediates, novel salt compounds of intermediates of the compound of formula- 1. Further the use of novel salts in the preparation of the compound of formula- 1. The present invention also relates to the novel process for the preparation of the compound of formula- 1.