The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8058454 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 15, 2011

Filed:

Sep. 07, 2007
Applicants:

Núria Soldevilla Madrid, Barcelona, ES;

Ernesto Durán López, Barcelona, ES;

Jordi Puig Serrano, Girona, ES;

Inventors:

Núria Soldevilla Madrid, Barcelona, ES;

Ernesto Durán López, Barcelona, ES;

Jordi Puig Serrano, Girona, ES;

Assignee:

Medichem, S.A., Sant Joan Despi, ES;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 405/06 (2006.01); A61K 31/4025 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process for preparing substituted pyrrolidine compounds, including (5)-2-{1-[2-(2,3-dihydrobenzofuran-5-yl)ethyl]-3-pyrrolidinyl}-2,2-diphenylacetamide hydrobromide, commonly known in the art as darifenacin, comprising reacting a pyrrolidine compound with a benzofuran derivative in the presence of a phase-transfer catalyst.


Find Patent Forward Citations

Soldevilla Madrid, Núria. (2011). Method for preparing 1,3-disubstituted pyrrolidine compounds (U.S. Patent No. 8058454). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8058454

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