[1,2]-Fused 1,4-benzodiazepine compounds, process for their preparation and compositions containing them

US4508716A · kind A · utility

Assignee

• Kali-Chemie Pharma GmbH · DE

Inventors

• Hans Liepmann · Hannover, DE
• Michael Ruhland · Hannover, DE
• Herbert Muesch · Wennigsen (Deister), DE
• Werner Benson · Hannover, DE
• Henning Heinemann · Hannover, DE
• Horst Zeugner

Key dates

• Filing date: Dec 27, 1982
• Grant date: Apr 2, 1985
• Expiry date: Dec 27, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D513/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

[1,2]-fused 1,4-benzodiazepine compounds are disclosed corresponding to the general formula I ##STR1## wherein X is an oxygen or sulfur atom or an optionally substituted imino group, R.sub.1 is a hydrogen or halogen atom, lower alkyl radical, a lower alkoxy radical or a nitro group and R.sub.2 is a hydrogen or halogen atom, a lower alkyl radical, a lower alkoxy radical or a nitro group, or if R.sub.1 is a hydrogen atom, R.sub.2 may also be a lower alkylthio radical, or, if R.sub.1 is a hydrogen atom and X is a sulfur atom or an imino group, R.sub.2 may be a trifluoromethyl radical; or R.sub.1 and R.sub.2 are bonded to adjacent carbon atoms and together denote a methylenedioxy or ethylenedioxy radical; R.sub.3 is an optionally substituted furyl, thienyl, pyrrolyl or pyridyl radical and n is zero or, if R.sub.3 is furyl or thienyl, n may be 0 or 1. The compounds may be in the form of their optical isomers or acid addition salts. The compounds exhibit neuroleptic properties. Processes for preparing the compounds and pharmaceutical compositions containing them are also disclosed.