Biologically active methylene blue derivatives

US7371744B2 · kind B2 · utility

Assignee

• Photopharmica Limited · GB

Inventors

• Stanley Beames Brown · Burley-in-Wharfedale, GB
• Cassandra Claire O'Grady · Leeds, GB
• John Griffiths · Leeds, GB
• Kirste Joanne Mellish · Leeds, GB
• David Ian Vernon · Suwanee, US

Key dates

• Filing date: Nov 26, 2003
• Grant date: May 13, 2008
• Expiry date: Jan 24, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2/232
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A phenothiazinium compound of Formula (I):wherein: in which R′ and R″ each independently is a linear, branched or cyclic hydrocarbon group, or R′ and R″ together with the N atom to which they are attached form an optionally substituted 5-, 6- or 7-membered ring;