Patent · US Active

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

US7632844B2 · kind B2 · utility

13Cited by

5References

13Claims

0Family size

Assignee

NYCOMED GMBH · DE

Inventors

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

Key dates

Filing date	Dec 17, 2007
Grant date	Dec 15, 2009
Priority date	—
Expiry date	Jan 31, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P43/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.