Piperazine compounds
US4119719A · kind A · utility
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2References
19Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 14, 1977 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Sep 14, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Piperazine compound of formula ##STR1## wherein R.sub. 1 is halogen, lower alkyl, lower alkoxy or trifluoromethyl, R.sub.2 and R.sub.3 form, together with the nitrogen atom to which they are attached a saturated heterocycle having n cyclic atoms, n being 4-8, have analgesic activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.