Anti-inflammatory products derived from methylene-diphosphonic acid, and process for their preparation
US4746654A · kind A · utility
54Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1986 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Apr 24, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to products of the formula ##STR1## where R.sub.1 is H or alkyl, n is an integer from 0 to 10, and R.sub.2 is chosen from amongst H, unsubstituted or substituted alkyl radicals, a ##STR2## a substituted or unsubstituted phenyl radical, a ##STR3## where X is oxygen or sulfur, or a heterocyclic radical with 5 or 6 members, which may or may not be fused to a benzene ring and R.sub.3 is H or OH. The present invention also relates to a process for the preparation of the products of the formula (I), and to the drugs, having in particular an anti-inflammatory effect, containing a product of the formula (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.