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:
Aug. 17, 1999
Filed:
Aug. 04, 1998
Applicant:
Inventors:
Hiroshi Goda, Hyogo-ken, JP;
Junichi Sakamoto, Hyogo-ken, JP;
Shigeki Sakaue, Hyogo-ken, JP;
Sakae Kajihara, Hyogo-ken, JP;
Miki Todo, Hyogo-ken, JP;
Assignee:
Sumitomo Seika Chemicals Co., Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544368 ;
Abstract
There is disclosed a process for preparing 3-piperazinylbenzisothiazoles comprising reacting the specified 3-halo-1,2-benzisothiazole or 2-cyanobenzenesulfenyl halide in the presence of an alkylene glycol derivative. The process is industrially effective, easy and economical and can provide useful intermediates for production of pharmaceutical preparations.