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:
Sep. 17, 1996
Filed:
May. 26, 1994
Masami Muraoka, Osaka, JP;
Kazuki Matsui, Osaka, JP;
Hirohiko Hasegawa, Osaka, JP;
Atsuyuki Kojima, Hyogo, JP;
Sumitomo Pharmaceuticals Co., Ltd., Osaka, JP;
Abstract
This invention is to provide quinazolinone derivatives, and their acid salts and quaternary ammonium salts, having an effect of preventing or treating diseases caused by calcium ion overload in cells, such as ischemic heart disease, ischemic cerebral disease and ischemic renal disease, and their usage. The quinazolinone derivatives are represented by the formula: ##STR1## typically, T represents an oxygen atom; Y represents a phenyl or cyclohexyl group; R.sup.1 represents a hydrogen or chlorine atom; R.sup.2 represents a hydrogen atom; ring W represents a benzene or pyridine ring; Z represents a group of the formula: ##STR2##