Hoffmann-la Roche Inc.

Rene Borer

Emilio Kyburz

Max Gerecke

Andre Szente

Walter Gassner

Max Gerecke-Jecklin

Bernd B{umlaut Over (u)}ttelmann

The invention is concerned with hydroxymethyl-imidazodiazepines and their esters of general formula I. These compounds can be used as anxiolytic and/or anticonvulsant and/or muscle relaxant and/or sedative-hypnotic active substances.

Hydroxymethylimidazodiazepines and their esters

The novel imidazodiazepine derivatives of the formula: ##STR1## wherein the substituents are as described in the specification, can be used for the control or prevention of epileptic seizures, anxiety, tension and excitation states, sleep disorders, schizophrenic symptoms, hepatic encephalopathy and senile dementia, as well as, in the partial or complete antagonization of undesired side-effects of substances acting on benzodiazepine receptors after over-dosage or after their use in intensive medicine and in anesthesia.

Imidazodiazepine derivatives

There are presented benzazepines of the formula ##STR1## wherein either R.sup.1 is hydrogen, lower alkyl, 4-pyridyl or the group --(CH.sub.2).sub.n --NR.sup.6 R.sup.7 and R.sup.2 and R.sup.3 together are an additional bond or R.sup.1 and R.sup.2 together are the oxo group and R.sup.3 is hydrogen or lower alkyl, R.sup.4 is phenyl, o-halophenyl or 2-pyridyl, R.sup.5 is halogen or nitro and either R.sup.6 is hydrogen or lower alkyl and R.sup.7 is hydrogen, lower alkyl, lower alkenyl or lower alkynyl or R.sup.6 and R.sup.7 together with the nitrogen atom are 4-(lower alkyl)-1-piperazinyl or 4-morpholinyl and n is the number 0 or 1, and their pharmaceutically acceptable acid additions salts. The compounds possess interesting psychotropic properties, i.e., pronounced anxiolytic properties have been established in the case of certain representative members of this class of substance.

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Reinach, Switzerland

Rene Borer