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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 |