4,5,9,10-Tetrahydro-1,4-ethanobenz[b]quinolizine as a prodrug for its quinolizinium cation as a ligand to the open state of the TCP-binding site of NMDA receptors.
Bioorg Med Chem Lett 2001;
11:519-21. [PMID:
11229761 DOI:
10.1016/s0960-894x(00)00716-2]
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Abstract
A new derivative of 4,5,9,10-tetrahydro-1,4-ethanobenz[b]quinolizine (2) has been designed as a prodrug for its quinolizinium cation (1) that is a potent antagonist of the TCP-binding site of NMDA receptors at the open state. The 11C-labeled 2 showed high accumulation of radioactivity in the brain in an in vivo biodistribution study. The speculation of 2 as a prodrug of 1 has been proven by the fact that 1 was observed in a high ratio to 2 in an analysis by RP-HPLC of the brain homogenates.
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