Patent · US Expired

Method for the preparation of citalopram

US6426422B1 · kind B1 · utility

14Cited by

10References

14Claims

0Family size

Assignee

H. LUNDBECK A/S · DK

Inventors

Hans Petersen
Haleh Ahmadian · Solrød Strand, DK

Key dates

Filing date	Aug 14, 2001
Grant date	Jul 30, 2002
Priority date	—
Expiry date	Aug 14, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P25/34
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Disclosed is a method for the preparation of citalopram comprising conversion of a compound of Formula VIII wherein Z is halogen, to a compound of Formula IV followed by conversion of the compound of Formula IV into citalopram. Methods for the preparation of the compound of Formula IV are also disclosed.

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