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. 14, 1993
Filed:
Oct. 19, 1990
Fumio Suzuki, Mishima, JP;
Junichi Shimada, Shizuoka, JP;
Takeshi Kuroda, Shizuoka, JP;
Kazuhiro Kubo, Shizuoka, JP;
Akira Karasawa, Huntingdon Valley, PA (US);
Tetsuji Ohno, Shizuoka, JP;
Kenji Ohmori, Mishima, JP;
Kyowa Hakko Kogyo Co., Ltd., Tokyo, JP;
Abstract
There are disclosed condensed purine derivatives represented by formula; ##STR1## in which R.sup.3 represents hydrogen, lower alkyl or benzyl; each of X.sup.1 and X.sup.2 independently represents hydrogen, lower alkyl, aralkyl or phenyl; and n is an integer of 0 or 1; R.sup.1 represents hydrogen, lower alkyl, alicyclic alkyl, noradamantan-3-yl, dicyclopropylmethyl or styryl; and R.sup.2 represents hydrogen, lower alkyl or alicyclic alkyl; or a pharmaceutically acceptable salt thereof. The derivatives and pharmaceutically acceptable salts are useful as diuretics, renal protecting agents, antiallergic agents and hypotensives.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile