Indole derivatives and process for preparing the same
US4139634A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | May 20, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D209/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Indole derivatives of the formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl radical, R.sub.2 and R.sub.3, which are the same or different, each represent a hydrogen atom, a methyl or ethyl radical, a benzyl radical or represent together a pentamethylene, hexamethylene, oxydiethylene or N-methylaminodiethylene chain, forming thus a cycle with the nitrogen atom, R.sub.4 represents a phenyl, 2', 4'-dimethyl-phenyl, isopropyl, cyclopropyl, 1-methyl-cyclopropyl, cyclopentyl or cyclohexyl radical, R.sub.5 represents a hydrogen atom, a branched- or straight-chain alkyl radical containing from 1 to 3 carbon atoms, a methylthio or ethylthio radical or a straight-chain acyl radical containing from 2 to 6 carbon atoms, R.sub.6 represents a hydrogen atom or a halogen atom, a methyl, methoxy, hydroxy, carboxy, nitro, amino, methylamino or dimethylamino radical, R.sub.7 represents a hydrogen atom or a halogen atom and n is 1 or 2, with the proviso that two at least of the groups R.sub.5, R.sub.6 and R.sub.7 represent a hydrogen atom and that, when n is 2, one at least of the groups R.sub.2 and R.sub.3 is not a hydrogen atom, and their pharmaceutically acceptable acid addit…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.