Process for preparing an anticholinergic

US6486321B2 · kind B2 · utility

Assignee

• BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG · DE

Inventors

• Rolf Banholzer · Stuttgart, DE
• Manfred Graulich · Waldalgesheim, DE
• Sven Luettke · Ockenheim, DE
• Andreas Mathes · Ockenheim, DE
• Helmut Meissner · Ingelheim am Rhein, DE
• Peter Specht · Ober-Hilbersheim, DE
• Wolfgang Broeder · Heidesheim, DE

Key dates

• Filing date: Dec 19, 2001
• Grant date: Nov 26, 2002
• Expiry date: Dec 19, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P43/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a new process for preparing (1&agr;,2&bgr;,4&bgr;,5&agr;,7&bgr;)-7-[(hydroxydi-2-thienylacetyl)oxy]-9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.02,4] nonane-bromide.