Pharmaceutical drug candidates and methods for preparation thereof
US7253306B2 · kind B2 · utility
18Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2004 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Feb 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2800/2821
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to methods of preparation of sulfonate derivatized compounds, e.g., 3-amino-1-propanesulfonic acid and 1,3-propanedisulfonic acid disodium salt with increased purity, with reduced potential for toxic by-products, and that are pharmaceutically useful, e.g., for the treatment of amyloidosis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.