Parasiticidal substituted 1,2,4-triazinediones

US5141938A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Werner Lindner · Eppstein, DE
• Axel Haberkorn · Wuppertal, DE

Key dates

• Filing date: May 7, 1991
• Grant date: Aug 25, 1992
• Expiry date: May 7, 2011

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K31/53
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A method of combating parasitic protozoa which comprises applying thereto an amount effective therefor of a 1,2,4-triazinedione of the formula ##STR1## in which R.sup.1 represents optionally substituted pyridyl, pyrazinyl or pyrimidinyl, PA1 X represents O, S, SO, SO.sub.2 or --CR.sup.4 (CN)--, PA1 R.sup.2 represents hydrogen, one or more, identical or different radicals of the group comprising hydrogen, halogen, nitro, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, alkylthio and halogenoalkylthio, PA1 R.sup.3 represents hydrogen, optionally substituted alkyl, alkenyl, alkinyl or aralkyl, and PA1 R.sup.4 represents hydrogen or alkyl.