3α-(4‘-Substituted phenyl)tropane- 2β-carboxylic Acid Methyl Esters: Novel Ligands with High Affinity and Selectivity at the Dopamine Transporter
作者:Christopher R. Holmquist、Kathryn I. Keverline-Frantz、Philip Abraham、John W. Boja、Michael J. Kuhar、F. Ivy Carroll
DOI:10.1021/jm960515u
日期:1996.1.1
Dopamine transporter imaging ligand
申请人:Research Triangle Institute
公开号:US06358492B1
公开(公告)日:2002-03-19
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.