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. 27, 2001
Filed:
Aug. 30, 1999
Applicant:
Inventors:
Patrick J. Sheeran, Landenberg, PA (US);
Luigi Anzalone, West Chester, PA (US);
Hui-Yin Li, Hockessin, DE (US);
Joseph M. Fortunak, Newark, DE (US);
Louis Storace, Middletown, DE (US);
Assignee:
DuPont Pharmaceuticals Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
C07D / ; C07D / ;
Abstract
Processes for the preparation of [S-(R,S)]-N-[1,3-benzodioxol-5-yl)butyl]-3,3-diethyl-2[4-[4-methyl-1-piperazinyl)carbonyl]phenoxy]-4-oxo-l-azetidine carboxamide, a useful inhibitor of human leukocyte elastase (HLE), are described. The process including (a) contacting a compound of formula (II):