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, 1994
Filed:
Feb. 14, 1992
Ryuji Tsuzuki, Ibaraki, JP;
Yuzo Matsumoto, Ibaraki, JP;
Akira Matsuhisa, Ibaraki, JP;
Toru Yoden, Ibaraki, JP;
Wataru Uchida, Ibaraki, JP;
Isao Yanagisawa, Tokyo, JP;
Yamanouchi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
Oxazinobenzazole derivatives represented by the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each independently represents a hydrogen atom or a lower alkyl group; R.sup.5 and R.sup.6 jointly form, in conjunction with the two adjacent carbon atoms, a substituted or unsubstituted 5- or 6-membered heterocyclic ring having at least two nitrogen atoms and optionally having one or more heteroatom(s) selected from the group consisting of an oxygen atom, a sulphur atom and a nitrogen atom; and m is an integer of 0 or 1, and pharmaceutically acceptable salts thereof. The compounds of the present invention are useful as antispasmodic medicaments.