Pyrrolidine analogs of GZ-793A: Synthesis and evaluation as inhibitors of the vesicular monoamine transporter-2 (VMAT2)
作者:Narsimha Reddy Penthala、Purushothama Rao Ponugoti、Justin R. Nickell、Agripina G. Deaciuc、Linda P. Dwoskin、Peter A. Crooks
DOI:10.1016/j.bmcl.2013.03.092
日期:2013.6
Central heterocyclic ring size reduction from piperidinyl to pyrrolidinyl in the vesicular monoamine transporter-2 (VMAT2) inhibitor GZ-793A and its analogs resulted in novel N-propane-1,2(R)-diol analogs 11a–i. These compounds were evaluated for their affinity for the dihydrotetrabenazine (DTBZ) binding site on VMAT2 and for their ability to inhibit vesicular dopamine (DA) uptake. The 4-difluoromethoxyphenethyl
在囊泡单胺转运蛋白 2 (VMAT2) 抑制剂GZ-793A及其类似物中,从哌啶基到吡咯烷基的中心杂环尺寸减小导致了新型N-丙烷-1,2( R )-二醇类似物11a-i。评估了这些化合物对 VMAT2 上的二氢丁苯那嗪 (DTBZ) 结合位点的亲和力以及抑制囊泡多巴胺 (DA) 摄取的能力。4-二氟甲氧基苯乙基类似物11f是最有效的 [ 3 H]-DTBZ 结合抑制剂( K i = 560 nM),与GZ-793A ( K i = 8.29 μM)相比,对该位点的亲和力高 15 倍。模拟图11f还显示出与GZ-793A(K i = 29 nM) 相比,抑制[ 3 H]-DA摄取进入囊泡的相似效力(K i = 45 nM)。因此,11f代表了一种新的 VMAT 功能水溶性抑制剂。