O-sulfated bacterial polysaccharides
US6288044A · kind A · utility
6Cited by
1References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 23, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Jul 23, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Process for the preparation of O-sulfated K4, K5 and K40 polysaccharides useful for the treatment of tumoral, HIV-1 and coagulation pathologies and in cosmetic preparations, wherein the K4, K5 or K40 polysaccharide in the form of sodium salt is suspended in an aprotic solvent and directly submitted to the reaction of O-sulfation with a pyridine-sulphur trioxide or trimetylamine-sulphur trioxide adduct or with chlorosulfonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.