Novel indolo [3,2,1-de] [1,4] oxazino [2,3,4-ij] [1,5]
US4904655A · kind A · utility
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21Claims
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Key dates
| Filing date | Jan 26, 1989 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Jan 26, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel compounds selected from the group consisting of all possible racemic or optically active forms of compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen, alkyl and alkoxy of 1 to 5 carbon atoms, -OH, -CF.sub.3 and -NO.sub.2 and ##STR2## is selected from the group consisting of ##STR3## and their non-toxic, pharmaceutically acceptable acid addition salts having a very good analgesic activity as well as antidepressive, neuronal protective, anti-anoxic, anti-ischemic and no-otropic activities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.