Patent · US Expired

Phenylphennanthridines with PDE-IV inhibiting activity

US6476025B1 · kind B1 · utility

45Cited by

6References

10Claims

0Family size

Assignee

ALTANA PHARMA AG · DE

Inventor

Beate Gutterer · Allensbach, DE

Key dates

Filing date	Jul 12, 2001
Grant date	Nov 5, 2002
Priority date	—
Expiry date	Jul 12, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D401/10
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Compounds of formula (I), in which R1, R2, R3, R31, R4, R5, R51, R6, R13 and R20 have the meaning indicated in the description, are novel active bronchial therapeutics

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