Imidazo[1,5a][1,4]benzodiazepines
US4386028A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1982 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Jul 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
There is provided imidazodiazepines of the formula ##STR1## wherein R.sup.1 is methyl, ethyl or isopropyl, one of R.sup.4 and R.sup.5 is hydrogen and the other is nitro or cyano, and either R.sup.2 is hydrogen and R.sup.3 is hydrogen or lower alkyl or R.sup.2 and R.sup.3 together are dimethylene, trimethylene or propenylene and the carbon atom denoted as .gamma. has the (S)- or (R,S)-configuration, and X is an oxygen or sulphur atom, and their pharmaceutically acceptable acid addition salts. The compounds are useful in the antagonization of the central-depressant muscle relaxant, ataxic, blood pressure-lowering and respiratory-depressant properties of 1,4-benzodiazepines which have tranquillizing activity. They can also be used for suppressing the activities on the central nervous system of 1,4-benzodiazepines used in other fields of indication, for example of schistosomicidally-active 1,4-benzodiazepines. Also provided are methods for making the compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.