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.

Date of Patent:
Mar. 19, 2002

Filed:

Oct. 07, 1997
Applicant:
Inventors:

Michael J. Kuhar, Baltimore, MD (US);

Frank I. Carroll, Durham, NC (US);

John W. Boja, Cuyahoga Falls, OH (US);

Anita H. Lewin, Chapel Hill, NC (US);

Philip Abraham, Cary, NC (US);

Assignee:

Research Triangle Institute, Research Triangle Park, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K 3/1304 ; A61K 5/100 ;
U.S. Cl.
CPC ...
C07D / ; A61K 3/1304 ; A61K 5/100 ;
Abstract

The 3&agr; isomer of RTI-55, RTI-352, is an effective in vivo binding ligand that reflects greater selectivity for the dopamine transporter than is observed with RTI-55. In addition, there is also a more rapid achievement of apparent equilibrium in the striatal-to-cerebellar ratio (compared to RTI-55) as the ratio peaks at about 30 min and is maintained for about 20 min thereafter. Such apparent equilibrium is useful in developing an approach to measuring the number of dopamine transporters present in tissues. Moreover, these results indicate that the utilization of 3&agr; isomers of a variety of 3&bgr;-(substituted phenyl)tropanes will result in greater selectivity for dopamine transporters and a more rapid of achievement of apparent equilibrium.


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