Various 1,5,10,11-tetrahydrobenzo [4,5]-cyclohepta [1,2-b]pyrazolo[4,3-e]pyridine derivatives
US4033970A · kind A · utility
3Cited by
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12Claims
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Inventors
Key dates
| Filing date | Jun 23, 1976 |
| Grant date | Jul 5, 1977 |
| Priority date | — |
| Expiry date | Jun 23, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formulas wherein R.sub.1 is lower alkyl, phenyl, benzyl or phenethyl; R.sub.2 is hydrogen, lower alkyl or phenyl; R is ##STR1## N IS AN INTEGER FROM 3 TO 6; R.sub.3 and R.sub.4 are each lower alkyl or R.sub.3 and R.sub.4 taken together with the N-atom form a heterocyclic ring of the formula ##STR2## wherein R.sub.5 is hydrogen, lower alkyl, or lower alkoxy; and pharmaceutically acceptable acid addition salts thereof are disclosed. These compounds and their salts possess central nervous system activity and are useful as anti-anxiety agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.