[(5,6,9a-Substituted-3-oxo-1,2,9,9a-tetrahy dro-3H-fluoren-7-yl)oxy]alkanoic and cycloalkanoic acids and their analogs, esters, salts and derivatives
US4317922A · kind A · utility
34Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1981 |
| Grant date | Mar 2, 1982 |
| Priority date | — |
| Expiry date | Feb 19, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to novel [(5,6,9a-substituted-3-oxo-1,2,9,9a-tetrahydro-3H-fluoren-7-yl)-oxy]alkano ic and cycloalkanoic acids and their analogs, esters, salts and derivatives. These compounds are synthesized by methods selected from a number of synthetic routes depending on the particular structure, choice of intermediate or preferred reaction sequence. The compounds are useful in the treatment and prevention of injury to the brain and spinal chord due to accidents, ischemic stroke and hydrocephalus; compositions for such uses are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.