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. 05, 1978
Filed:
Dec. 28, 1977
Yasuhiro Morinaka, Amimachi, JP;
Kazuo Takahashi, Amimachi, JP;
Mitsubishi Yuka Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
Substituted pyrimido[5,6-b]quinoxaline-4(3H)-one-2-carboxylic acid compounds each represented by the formula ##STR1## wherein: R designates a member selected from the group consisting of hydrogen, alkyl groups having 1 to 4 carbon atoms, benzyl group, and phenyl group; and each of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 independently designates a member selected from the group consisting of hydrogen, alkyl group having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, halogens, benzyloxy group, hydroxyl group, alkylthio groups having 1 to 4 carbon atoms, and alkylenedioxy groups having 1 to 4 carbon atoms and formed by the bonding of two of R.sup.1, R.sup.2, R.sup.3, and R.sup.4, or pharmacologically acceptable salts of said compounds.