The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 1977
Filed:
Nov. 22, 1974
Joseph Hellerbach, Basel, CH;
Andre Szente, Basel, CH;
Hoffmann-La Roche Inc., Nutley, NJ (US);
Abstract
Benzophenone derivatives are produced which have the formula ##STR1## wherein R.sub.1 signifies hydrogen, nitro, halogen or trifluoromethyl; R.sub.2 represents hydrogen or halogen; R.sub.3, R.sub.4 and R.sub.5 are the same or different and signify hydrogen or lower alkyl; R.sub.6 and R.sub.7 each represent lower alkyl or together with the nitrogen atom form a morpholino, 4-(lower alkyl)-1-piperazinyl, 1-pyrrolidinyl or piperidino group, A signifies an alkylene group with 2 to 8 C atoms and Y represents oxygen or a group ##STR2## R.sub.8 and R.sub.9 each signifying lower alkyl or together signifying lower alkylene. The benzophenone derivatives and their pharmaceutically acceptable salts exhibit sedative, anti-convulsant, muscle relaxant and anxiolytic activities. Also provided are methods for the preparation of these compounds.