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:
Jul. 01, 1980
Filed:
Nov. 30, 1978
Otsuka Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
Carbostyril compounds represented by the formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom, R.sub.2 represents a hydrogen atom, a phenylalkyl group, an alkoxyalkyl group, a hydroxyalkyl group, an alkylcarbonyl group, an alkynyl group, R.sub.3 and R.sub.4 each represents a hydrogen atom, a heterocyclic alkyl group or R.sub.3 and R.sub.4 can form, when taken together with the nitrogen atom to which they are attached, a 5- or 6-membered heterocyclic ring which may contain a nitrogen atom or an oxygen atom as an additional hetero atom, the 3,4-bond of the carbostyril nucleus represents a single or double bond, pharmaceutically acceptable acid addition salts thereof, and process for preparing the same.