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:
Feb. 15, 2000
Filed:
Aug. 03, 1998
Applicant:
Inventors:
James Wallace Hilborn, Windsor, CA;
Alex Roger Jurgens, Falmouth, CA;
Assignee:
Sepracor Inc., Marlborough, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 27 ; 564351 ; 564348 ;
Abstract
A synthesis of fluoxetine is disclosed. The process begins with benzoylacetonitrile, which is reduced, optionally in the presence of a chiral ligand, to produce the corresponding aminoalcohol, and the amine is carbamoylated without isolation. The alcohol is deprotonated and reacted with 4-chloro- or 4-fluoro benzotrifluoride or with 4-trifluoromethylphenol to provide a carbamate of fluoxetine. The carbamate is reduced with a hydride or with borane to provide fluoxetine free base. The process may be employed for the synthesis of individual enantiomers of fluoxetine.