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:
Apr. 25, 1989
Filed:
Oct. 08, 1987
Setsuro Fujii, Kyoto, JP;
Hiroyuki Kawamura, Otsu, JP;
Hiroshi Kiyokawa, Nara, JP;
Satoshi Yamada, Otsu, JP;
Otsuka Pharmaceutical Company, Limited, Tokyo, JP;
Abstract
Pyrazolotriazine compounds of the formula: ##STR1## wherein R.sup.1 is OH or alkanoyloxy; R.sup.2 is H, OH, or SH; R.sup.3 is (1) unsaturated N- or S-containing heterocyclic group optionally having 1-2 substituents of halogen, nitro or phenylthio, (2) naphthyl, (3) phenyl optionally having 1-3 substituents of (i) alkyl, (ii) phenyl, (iii) alkoxycarbonyl, (iv) cyano, (v) nitro, (vi) alkoxy, (vii) phenylalkoxy (viii) phenylthio-alkyl, (ix) phenoxy, (x) ##STR2## R is alkyl, halo-substituted alkyl, phenyl optionally having 1-3 substituents, or pyridyl, and l is 0, 1 or 2, (xi) halogen, (xii) phenylalkyl, (xiii) carboxy, (xiv) alkanoyl, (xv) benzoyl optionally having 1-3 substituents, (xvi) amino, (xvii) OH, (xviii) alkanoyloxy, (xix) ##STR3## or (xx) ##STR4## (A is alkylene), said compounds having a xanthine oxidase inhibitory activity and are useful for the prophylaxis and treatment of gout.