Phenanthridine-N-oxides with PDE-IV inhibiting activity

US6534519B1 · kind B1 · utility

Assignee

• ALTANA PHARMA AG · DE

Inventor

• Beate Gutterer · Allensbach, DE

Key dates

• Filing date: Jul 12, 2001
• Grant date: Mar 18, 2003
• Expiry date: Jul 12, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P43/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The N-oxides of the compounds of formula (I), in which R1, R2, R3, R31, R4, R5, R51 and R6 have the meanings indicated in the description, are novel active bronchial therapeutics.