Certain pyrano [3,4-b]indoles and thiopyrano[3,4-b]indoles
US3939178A · kind A · utility
51Cited by
1References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1972 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Sep 15, 1992 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D10/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Indole derivatives characterized by having a 1,3,4,9-tetrahydropyrano[3,4-b]indole or 1,3,4,9-tetrahydrothiopyrano[3,4-b]indole nucleus bearing a substituent in position 1, said substituent incorporating an acid, ester or amide function therein, are disclosed. The nucleus is further substituted at position 1 and may be optionally substituted at positions 3, 4, 5, 6, 7, 8, and 9. The derivatives are useful antiinflammatory, analgesic, antibacterial and antifungal agents and methods for their preparation and use are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.