Imidazobenzodiazepines
US4489003A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Jul 14, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are described novel pharmaceutically active substances which have a pronounced affinity to the central benzodiazepine receptors and which have only a low toxicity. These active substances, namely imidazobenzodiazepines of the formula ##STR1## wherein A is lower alkylene, n is zero or 1, R.sup.1 is lower alkynyl, lower alkenyl, aryl, (C.sub.3-8)-cycloalkyl optionally substituted by lower alkyl or (C.sub.5-8)-cycloalkenyl optionally substituted by lower alkyl, or a 5- or 6-membered saturated or unsaturated heterocycle which contains an oxygen or sulphur atom as a ring member and which is optionally substituted by lower alkyl, R.sup.4 and R.sup.5 each are hydrogen, halogen, trifluoromethyl, cyano, nitro, amino or lower alkyl and either R.sup.2 is hydrogen and R.sup.3 is lower alkyl or R.sup.2 and R.sup.3 together are dimethylene, trimethylene or propenylene, the compounds of formula I in which R.sup.2 and R.sup.3 together are dimethylene, trimethylene or propenylene having the (S) or (R,S) configuration with reference to the carbon atom denoted by .gamma., and their pharmaceutically acceptable acid addition salts, can be used as medicaments in the form of pharmaceutical preparat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.