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:
May. 30, 1995
Filed:
Nov. 24, 1992
Applicant:
Inventors:
Yuzo Matsumoto, Ibaraki, JP;
Ryuji Tsuzuki, Ibaraki, JP;
Akira Matsuhisa, Ibaraki, JP;
Kazuhisa Takayama, Ibaraki, JP;
Wataru Uchida, Ibaraki, JP;
Masaharu Asano, Tokyo, JP;
Isao Yanagisawa, Tokyo, JP;
Toru Yoden, Ibaraki, JP;
Assignee:
Yamanouchi Pharmaceutical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
5142305 ; 544105 ;
Abstract
Novel benzoxazine derivatives of the formula (I): ##STR1## are provided as well as their pharmaceutically acceptable salts and a method for their use as potassium channel activating agents 2-(3,4-Dihydro-2, 2-dimethyl-6-phenylsulfonyl-2H-1,4-benzoxazin-4-yl)pyridine N-oxide is illustrative of a benzoxazine derivative of formula (I). Also provided are intermediate compounds such as those of formula (II): ##STR2##