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:
May. 09, 1995
Filed:
Sep. 20, 1993
Applicant:
Inventors:
Wendell W Wilkerson, New Castle, DE (US);
Richard A Earl, Wilmington, DE (US);
Matthew E Voss, Lincoln University, PA (US);
Assignee:
The Du Pont Merck Pharmaceutical Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
514339 ; 514333 ; 546256 ; 546273 ;
Abstract
Compounds of the following formula have been shown to enhance the release of the neurotransmitter acetylcholine, and thus may be useful in the treatment of diseases of man involving learning and cognition, where subnormal levels of this neurochemical are found ##STR1## wherein R.sup.1 is 4-,3-, or 2-pyridyl, 2-fluoro-4-pyridyl or 3-fluoro-4-pyridyl;