Substituted 1,3,4,9-tetrahydropyrano(3,4-b)indole-1-acetic acids
US4971960A · kind A · utility
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13References
2Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 14, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Feb 14, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D491/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Indole derivatives characterized by having a 1,3,4,9-tetrahydropyrano[3,4-b]indole-1-acetic acid nucleus bearing a substituent in position 1 and 4. The nucleus may be optionally substituted at positions 5, 6, 7 and 8. The derivatives are useful anti-inflammatory and analgesic agents and methods for their preparation and use are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.