| Merck Development Centre Private Limited Patent applications |
| Patent application number | Title | Published |
|---|
| 20100063160 | POLYMORPHS OF O-DESMETHYL VENLAFAXINE SUCCINATE - The present invention relates to crystalline forms of O-desmethyl venlafaxine (ODV) succinate monohydrate, namely Forms I and II, in pure form and to novel processes for their preparation. The present invention provides a process for the preparation of Form II free of Form I and a process for the preparation of Form I free of Form II. The present invention provides direct methods for the preparation of ODV succinate Form II from ODV free base and for the preparation of ODV succinate Form I from ODV free base. | 03-11-2010 |
| 20090286880 | NOVEL PROCESS - The present invention relates to a novel process for the preparation of γ-amino acids, such as (±)-3-(aminomethyl)-5-methyl-hexanoic acid 1, which is a key intermediate in the preparation of the potent anticonvulsant pregabalin, (S)-(+)-3-(aminomethyl)-5-methyl-hexanoic acid 2. | 11-19-2009 |
