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:
Mar. 21, 2000
Filed:
Dec. 08, 1998
Takeda Chemical Industries, Inc., Osaka, JP;
Abstract
This invention relates to prophylactic or therapeutic drug for diabetic nephropathy or glomerulonephritis, comprising, as an active ingredient, a compound or salt thereof represented by general formula (I) ##STR1## wherein R.sup.1 stands for H or an optionally substituted hydrocarbon residue; R.sup.2 stands for an optionally esterified carboxyl group; R.sup.3 stands for a group actually or potentially capable of forming an anion; X shows that the phenylene and phenyl groups bind to each other directly or through a spacer having an atomic chain length of two or less; n stands for 1 or 2; ring A stands for a benzene ring having an optional substituent in addition to R.sup.2 ; Y stands for a bond, --O--, --S(O).sub.m -- (wherein m stands for 0, 1 or 2), or --N(R.sup.4)-- (wherein R.sup.4 stands for H or an optionally substituted alkyl group).