Dr. Reddy's Laboratories Limited
Process for preparation of palbociclib

Abstract:

The present application relates to a process for the preparation of crystalline form A of palbociclib having specific surface area more than 2 m.sup.2/g comprising one-pot process for the preparation of compound of formula (IV). The present application further relates to the preparation of acid-addition salts of palbociclib and their use for the synthesis of crystalline form A of palbociclib having specific surface area more than 2 m.sup.2/g.