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:
Jul. 07, 1992
Filed:
Jun. 26, 1991
Applicant:
Inventors:
Shigeru Nishimoto, Minoo, JP;
Akio Nakao, Osaka, JP;
Yasuji Ikeda, Kyoto, JP;
Hiroyuki Nate, Higashiosaka, JP;
Hironori Hayashi, Toyonaka, JP;
Tamotsu Okuno, Kawanishi, JP;
Masashi Kitano, Nara, JP;
Sadao Maeda, Ibaraki, JP;
Assignee:
Tanabe Seiyaku Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
540491 ;
Abstract
This disclosure describes a process for the preparation of 1,5-benzothiazepinone derivatives. The process involves the use of sulfonic acids as catalysts to effect ring closure to form the 1,5-benzothiazepinone ring. The resulting compounds have well known pharmaceutical properties.