Di(uridine 5′-)tetraphosphate and salts thereof
US7528119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2006 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Feb 26, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H21/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention are directed to P1,P4-di(uridine 5′-)tetraphosphate, tetra-alkali metal salts such as tetrasodium, tetralithium, tetrapotassium, and mixed tetra-alkali metal cations thereof. The tetra alkali metal salts of P1,P4-di(uridine 5′-)tetraphosphate are water-soluble, nontoxic, and easy to handle during manufacture. These tetra-monovalent alkali metal salts are more resistant to hydrolysis than the mono-, di-, or tri-acid salts, therefore, they provide an improved stability and a longer shelf life for storage. The present invention also provides methods for the synthesis of P1,P4-di(uridine 5′-)tetraphosphate, and its pharmaceutically acceptably acceptable salts thereof, and demonstrates the applicability to the production of large quantities. The methods substantially reduce the time required to synthesize diuridine tetraphosphate, for example, to three days or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.