Design of new dopamine D2 receptor ligands: Biosynthesis and pharmacological evaluation of the hydroxylated metabolite of LASSBio-581
摘要:
LASSBio-581 is a N-phenylpiperazine derivative designed for the treatment of schizophrenia. In this study, four strains of filamentous fungi were screened for their capabilities to biotransform LASSBio-581. Cunninghamella echinulata ATCC 9244 was chosen to scale up the biosynthesis of the p-hydroxylated metabolite of LASSBio-581. The chemical structure of the metabolite was confirmed by NMR, LC-MS and X-ray crystallography. Binding studies performed on brain homogenate indicated that the p-hydroxylated metabolite can be considered more selective for dopamine receptors than LASSBio-581, and, therefore, can be used to design new selective dopamine inhibitors. (C) 2010 Elsevier Ltd. All rights reserved.
Searching for multi-target antipsychotics: Discovery of orally active heterocyclic N-phenylpiperazine ligands of D2-like and 5-HT1A receptors
作者:Gilda Neves、Ricardo Menegatti、Camila B. Antonio、Luiza R. Grazziottin、Renan O. Vieira、Stela M.K. Rates、François Noël、Eliezer J. Barreiro、Carlos A.M. Fraga
DOI:10.1016/j.bmc.2010.01.040
日期:2010.3
We described herein the design, synthesis, and pharmacological evaluation of N-phenylpiperazine heterocyclic derivatives as multi-target compounds potentially useful for the treatment of schizophrenia. The isosteric replacement of the heterocyclic ring at the biaryl motif generating pyrazole, 1,2,3-triazole, and 2-methylimidazole[1,2-a]pyridine derivatives resulted in 21 analogues with different substitutions at the para-biaryl and para-phenylpiperazine positions. Among the compounds prepared, 4 (LASSBio-579) and 10 (LASSBio-664) exhibited an adequate binding profile and a potential for schizophrenia positive symptoms treatment without cataleptogenic effects. Structural features of this molecular scaffold are discussed regarding binding affinity and selectivity for D-2-like, 5-HT1A, and 5-HT2A receptors. (C) 2010 Elsevier Ltd. All rights reserved.
Design of new dopamine D2 receptor ligands: Biosynthesis and pharmacological evaluation of the hydroxylated metabolite of LASSBio-581
作者:Francine Pazini、Ricardo Menegatti、José R. Sabino、Carolina H. Andrade、Gilda Neves、Stela M.K. Rates、François Noël、Carlos A.M. Fraga、Eliezer J. Barreiro、Valéria de Oliveira
DOI:10.1016/j.bmcl.2010.03.034
日期:2010.5
LASSBio-581 is a N-phenylpiperazine derivative designed for the treatment of schizophrenia. In this study, four strains of filamentous fungi were screened for their capabilities to biotransform LASSBio-581. Cunninghamella echinulata ATCC 9244 was chosen to scale up the biosynthesis of the p-hydroxylated metabolite of LASSBio-581. The chemical structure of the metabolite was confirmed by NMR, LC-MS and X-ray crystallography. Binding studies performed on brain homogenate indicated that the p-hydroxylated metabolite can be considered more selective for dopamine receptors than LASSBio-581, and, therefore, can be used to design new selective dopamine inhibitors. (C) 2010 Elsevier Ltd. All rights reserved.