Interferon alpha-2a modified by polyethylene glycol and methods of preparation thereof
US8597634B2 · kind B2 · utility
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5References
28Claims
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Key dates
| Filing date | Sep 4, 2007 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Nov 20, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to interferon (IFN)-α2a modified at a specific Lys residue with Y-shaped branched polyethylene glycol (PEG) derivative and the preparation thereof, as well as the use of the prepared IFN-α2a modified by PEG at a single amino acid residue in medicines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.