Antidepressant 2-(4,5-dihydro-1H-imidazolyl)-dihydro-1H-indoles, -1,2,3,4-tetrahydroquinolines and -1H-indoles, and methods of use thereas
US5017584A · kind A · utility
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2References
37Claims
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Key dates
| Filing date | Nov 27, 1985 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Nov 27, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
2-(4,5-Dihydro-1H-imidazol-2-yl)-2,3-dihydro-1H-indoles, 2-(4,5-dihydro-1H-imidazol-2-yl)-1,2,3,4-tetrahydroquinolines and 2-(4,5-dihydro-1H-imidazol-2-yl)-1H-indoles, useful as antidepressant agents, are prepared by reacting a respective lower-alkyl 2,3-dihydro-1H-indole-2-carboxylate 1,2,3,4-tetrahydroquinoline-2-carboxylate or 1H-indole-2-carboxylate derivative with ethylenediamine or an N-lower-alkylethylenediamine in the presence of a Lewis-type acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.