Inventors:
Michael B. Sommer - Bagsvaerd, DK
Ole Nielsen - Valby, DK
Hans Petersen - Vanlose, DK
Haleh Ahmadian - Solrod Strand, DK
Henrik Pedersen - Bronshoj, DK
Peter Brosen - Herlev, DK
Fiona Geiser - Glen Mills PA, US
James Lee - Philadelphia PA, US
Geoffrey Cox - West Chester PA, US
Olivier Dapremont - Folsom CA, US
Christina Suteu - Illkirch, FR
Sebastian P. Assenza - Fort Salonga NY, US
Shankar Hariharan - Inwood NY, US
Usha Nair - Nashville TN, US
Assignee:
H. Lundbeck A/S - Valby-Copenhagen
International Classification:
C07D 307/87, C07C 215/32
Abstract:
A novel method is provided for the manufacture of escitalopram. The method comprises chromatographic separation of the enantiomers of citalopram or an intermediate in the production of citalopram using a chiral stationary phase such as Chiralpak™ AD or Chiralcel™ OD. Novel chiral intermediates for the synthesis of Escitalopram made by said method are also provided.