Micronization method

US9156835B2 · kind B2 · utility

Assignee

• BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG · DE

Inventors

• Norbert Rasenack · Weil am Rhein, DE
• Michael Walz · Friedberg, DE
• Michael Trunk · Ingelheim am Rhein, DE
• Hagen Graebner · Ingelheim am Rhein, DE

Key dates

• Filing date: Dec 7, 2006
• Grant date: Oct 13, 2015
• Expiry date: Oct 30, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P11/06
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing a micronized, virtually anhydrous form of (1α,2β,4β,5α,7β)-7-[(hydroxydi-2-thienylacetyl)oxy]-9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.02,4]nonane bromide, said form per se, and the use thereof for producing a medicament, especially a medicament having an anticholinergic effect.