Patent · US Expired

Process for the preparation of roflumilast

US7470791B2 · kind B2 · utility

18Cited by

6References

162Claims

0Family size

Assignee

NYCOMED GMBH · DE

Inventors

Bernhard Kohl · Konstanz, DE
Bernd Mueller · Konstanz, DE
Walter Palosch · Rielasingen-Worblingen, DE

Key dates

Filing date	Mar 8, 2004
Grant date	Dec 30, 2008
Priority date	—
Expiry date	Oct 18, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D213/75
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to novel processes for the preparation of high-purity roflumilast.

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