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. 11, 1977
Filed:
Feb. 07, 1969
Hisao Yamamoto, Nishinomiya, JA;
Shigeho Inaba, Takarazuka, JA;
Tadashi Okamoto, Ashiya, JA;
Toshiyuki Hirohashi, Kobe, JA;
Kikuo Ishizumi, Minoo, JA;
Michihiro Yamamoto, Takarazuka, JA;
Isamu Maruyama, Minoo, JA;
Kazuo Mori, Kobe, JA;
Tsuyoshi Kobayashi, Minoo, JA;
Sumitomo Chemical Company, Limited, Osaka, JA;
Abstract
A 1-alkyl-1,2,4,5-tetrahydro-3H-1,4-benzodiazepine derivative is produced by contacting a 1-aminoethyl-indole derivative with a suitable oxidizing agent and then reducing the resulting 1-acyl-2,3-dihydro-1H-1,4-benzodiazepine derivative. The starting 1-aminoethyl-indole derivative is prepared by subjecting a 3-phenyl-indole derivative to cyanomethylation (or carbamoylemethylation) and then reducing the resulting 1-cyanomethyl- (or 1-carbamoylmethyl)-indole derivative. The 1-acyl-1,2,4,5-tetrahydro-3H-1,4-benzodiazepine derivative is useful as a tranquillizer, muscle-relaxant, etc.