Patent · US Expired

Xanthine oxidase inhibitors

US4021556A · kind A · utility

26Cited by

2References

6Claims

0Family size

Assignee

ICN Pharmaceuticals, Inc. · US

Inventors

Robert H. Springer · Wyckoff, US
Darrell E. O'Brien · Mission Viejo, US
Lionel Simon · Santa Ana, US

Key dates

Filing date	Nov 17, 1975
Grant date	May 3, 1977
Priority date	—
Expiry date	Nov 17, 1995

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K31/505
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Compounds of the following structure are disclosed which are effective inhibitors of the enzyme xanthine oxidase: ##STR1## R is an aromatic or substituted aromatic nucleus such as phenyl, R.sub.1 is H, an alkali metal or ammonium, and R.sub.2 is H or OR.sub.1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.