The compound of Formula II and IV are key intermediates for the synthesis of GABA derivative of Formula I. The present invention relates to an in-situ process for the preparation of compound of Formula II and Formula IV.

The present invention relates to an improved process for the preparation of 7-[4-[4-(2,3-dichlorophenyl)-1-piperazinyl]butoxy]-3,4-dihydro-2(1H)-quinolinone of Formula (I) also known as Aripiprazole. The process of present invention is carried out in one step at a commercially viable scale. Thus, making the producti...

This invention relates to an Enzymatic process for producing (R)-(-)-3-(Carbamoylmethyl)-5-methylhexanoic acid using a hydrolase enzyme to conduct a stereoselective hydrolysis reaction of 4-isobutylpiperidine-2,6-dione (1) at ambient temperatures at a pH range of 6.5-8.5pH.