Pharmaceutical compositions
US4585780A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1984 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Mar 22, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P39/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Pharmaceutical compositions containing a 3-hydroxypyrid-2-one or 3-hydroxypyrid-4-one in which the hydrogen atom attached to the nitrogen atom is replaced by an aliphatic acyl group, by an aliphatic hydrocarbon group, or by an aliphatic hydrocarbon group substituted by one or, except in the case of ionizable groups, more than one substituent selected from aliphatic acyl, alkoxy, aliphatic amine, aliphatic amide, carboxy, aliphatic ester, halogen, hydroxy and sulpho groups and, optionally, in which one or more of the hydrogen atoms attached to ring carbon atoms are replaced by one of said substituents, by an aliphatic hydrocarbon group, or by an aliphatic hydrocarbon group substituted by an alkoxy, aliphatic ester, halogen or hydroxy group, but excluding compounds in which said replacement of hydrogen atoms in the compound is effected only by aliphatic hydrocarbon groups, or a salt thereof containing a physiologically acceptable ion or ions, are of value for removing toxic amounts of metals, particularly iron, from the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.