Patent · US Expired

4(1H)-pyrimidinones

US4034093A · kind A · utility

9Cited by

1References

23Claims

0Family size

Assignee

Byk Gulden Lomberg Chemische Fabrik GmbH · DE

Inventors

Kurt Klemm
Erhard Langenscheid

Key dates

Filing date	Sep 4, 1973
Grant date	Jul 5, 1977
Priority date	—
Expiry date	Sep 4, 1993

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C251/72
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Therapeutically-active and pharmacologically-acceptable 1-amido-5-cyano-4(1H)-pyrimidinones and their pharmaceutically-acceptable acid addition salts inhibit xanthineoxidase and are useful as the active ingredient in medicaments for the treatment of gout. Such pyrimidinones are prepared by treating 2-(acyl) hydrazonomethyl-3-chloro or hydroxy-4-aza-2,4-pentadienenitriles with acid.

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