Hydroxystilbene compounds used as microbicidal active substances

US6814960B1 · kind B1 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Werner Hölzl · Eschentzwiller, FR
• Dietmar Ochs · Schopfheim, DE
• Wolfgang Haap · Bad Kötzting, DE
• Karin Puchtler · Fischingen, DE
• Marc I Schnyder · Birsfelden, CH

Key dates

• Filing date: Apr 5, 2001
• Grant date: Nov 9, 2004
• Expiry date: Apr 5, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q19/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The use of hydroxystilbene compounds of formula whereinA is a radical of formula  or a radical of formula  andR1, R2, R3, R4 and R5 are each independently of the others hydrogen, halogen, hydroxy, C1-C16alkyl, C1-C16alkoxy, phenyl; C1-C3phenylalkyl; C6-C10aryloxy, amino, mono-C1-C5alkylamino, di-C1-C5alkylamino, or —NO2;as microbicidal active ingredients is described.The compounds exhibit a pronounced action against pathogenic gram-positive and gram-negative bacteria, and also against yeasts and moulds. They are therefore suitable for the antimicrobial treatment, especially the preservation and disinfection, of surfaces.