Pregabalin lactam methylene dimer and preparation method therefor
US12018018B2 · kind B2 · utility
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Key dates
| Filing date | Nov 6, 2018 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Aug 10, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided are a pregabalin lactam methylene dimer and a preparation method therefor. The method comprises the following steps: dissolving pregabalin in a reaction solvent, reacting same with an aldehyde in an acidic system and isolating the obtained target product pregabalin lactam methylene dimer. The preparation method for pregabalin lactam methylene dimer provided by the present application has a simple operation, a high product yield, a good purity and a low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.