KATAYAMA SEIYOKUSYO CO., LTD.
|KATAYAMA SEIYOKUSYO CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20100076203||Succinic acid diester derivative, process for production thereof, and use of the derivative in the production of pharmaceutical preparation - The present invention provides with a process of preparing an optically active succinimide derivative, which is a key intermediate for production of ranirestat. A compound (3) is easily prepared by treating the derivative of succinic acid diester of the formula (2):||03-25-2010|