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.:
Date of Patent:
Apr. 18, 2006
Filed:
Oct. 04, 2004
Applicant:
Hans Petersen, Vanlose, DK;
Inventor:
Hans Petersen, Vanlose, DK;
Assignee:
H. Lundbeck A/S, Valby-Copenhagen, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/87 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for the preparation of citalopram comprising reductive hydrolysis of a compound of Formula (IV)wherein R is a N,N-disubstituted amid group or an optionally substituted 4,5-dihydro-1,3-oxazol-2-yl group, and conversion of the resulting 5-formyl compound to citalopram.