Patent · US Expired

6-arylphenanthridines with PDE-IV inhibiting activity

US6479505B1 · kind B1 · utility

12Cited by

3References

10Claims

0Family size

Assignee

ALTANA PHARMA AG · DE

Inventor

Beate Gutterer · Allensbach, DE

Key dates

Filing date	Jul 12, 2001
Grant date	Nov 12, 2002
Priority date	—
Expiry date	Jul 12, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D491/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Compounds of formula (I), in which R1, R2, R3, R31, R4, R5, R51 and Ar have the meanings indicated in the description, are novel active bronchial therapeutics.

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