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:
Dec. 24, 1985
Filed:
Sep. 14, 1983
Hiroyuki Nagano, Saitama, JP;
Mitiro Takagi, Saitama, JP;
Noboru Kubodera, Saitama, JP;
Isao Matsunaga, Tokyo, JP;
Hiroyuki Nabata, Tokyo, JP;
Yasuhiro Ohba, Kanagawa, JP;
Kazushige Sakai, Tokyo, JP;
Shun-ichi Hata, Kanagawa, JP;
Yasumi Uchida, Chiba, JP;
Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;
Abstract
Compounds of the formula ##STR1## (wherein R.sub.1 is a lower alkyl group, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a hydroxyl group, a trifluoromethyl group or a lower alkoxycarbonyl group; two adjacent groups of R.sub.2, R.sub.3 and R.sub.4 may combine to form a methylenedioxy group; n is an integer of 2 to 6) or salts thereof, are disclosed. These compounds are useful as agents for treating circulatory diseases because they have hypotensive action and are capable of increasing the cerebral blood flow, decreasing the heart rate and suppressing ventricular arrhythmia due to myocardial ischemia.