Process for preparing {6-[(diethylamino)methyl]naphthalen-2-yl}methyl [4-(hydroxycarbamoyl)phenyl]carbamate having high purity
US12129224B2 · kind B2 · utility
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Key dates
| Filing date | Mar 5, 2020 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Aug 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for obtaining {{6-[(diethylamino)methyl]naphthalen-2-yl}methyl[4-(hydroxycarbamoyl)phenyl]carbamate and/or pharmaceutically acceptable salts thereof having high purity is described. This process allows to obtain a product having an amount of any single unknown impurity equal to or less than 0.10%, as well as a product having a purity greater than 99.5%, preferably equal to or greater than 99.6%.An HPLC method for determining the purity of the product and possible impurities thereof is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.