Certain as-triazino 4,3-a! 1,4!benzodiazepine derivatives
US4073785A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1977 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Mar 9, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D243/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula IV ##STR1## wherein R is hydrogen or alkyl of 1 or 2 carbon atoms; wherein R.sub.1 is alkyl of 1 to 3 carbon atoms, inclusive; or ##STR2## is a 2-cycloalkenylene ring of 5 or 6 carbon atoms; wherein R.sub.2 is hydrogen, methyl or ethyl; wherein R.sub.3 is hydrogen, fluoro, chloro, bromo, nitro and --CF.sub.3 ; and wherein Ar is phenyl, o-chlorophenyl, o-fluorophenyl, 2,6-difluorophenyl, and 2-pyridyl, are prepared by treating a hydrazino compound of the formula: ##STR3## wherein Ar and R.sub.3 are defined as above, with a dicarbonyl compound II: ##STR4## and cyclizing the resulting compound III to give the compound IV above. Compound IV, including the pharmacologically acceptable acid addition salt of these compounds, have sedative, anxiolytic and muscle-relaxing activity and can be used for the treatment of anxieties or muscle strains of mammals, including man.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.