Immunomodulators obtained semisynthetically from a bacterial polysaccharide isolated from a non-encapsulated mutant strain of Klebsiella pneumoniae
US4933440A · kind A · utility
5Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1987 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | May 12, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2039/55583
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a polysaccharide derivative which is an amide, an ester, an ether, a salt or a quaternary ammonium derivative of D.25 with an amine, an acid or an alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.