2-hydroxy-6-phenylphenanthridines as PDE-4 inhibitors

US7329676B2 · kind B2 · utility

Assignee

• NYCOMED GMBH · DE

Inventors

• Ulrich Kautz · Allensbach, DE
• Beate Schmidt · Allensbach, DE

Key dates

• Filing date: Aug 28, 2003
• Grant date: Feb 12, 2008
• Expiry date: Feb 28, 2024

Classification

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

Abstract

The compounds of formula Iin which R1, R2, R3, R31, R4, R5, R6 and R7 have the meanings as indicated in the description, are novel effective PDE4 inhibitors.