Characteristics of metabolic stability and the cell permeability of 2‐pyrimidinyl‐piperazinyl‐alkyl derivatives of 1H‐imidazo[2,1
<i>‐f</i>
]purine‐2,4(3
<i>H</i>
,8
<i>H</i>
)‐dione with antidepressant‐ and anxiolytic‐like activities
作者:Agnieszka Zagórska、Anna Partyka、Adam Bucki、Marcin Kołaczkowski、Magdalena Jastrzębska‐Więsek、Anna Czopek、Agata Siwek、Monika Głuch‐Lutwin、Marek Bednarski、Marek Bajda、Jakub Jończyk、Kamil Piska、Paulina Koczurkiewicz、Anna Wesołowska、Maciej Pawłowski
DOI:10.1111/cbdd.13442
日期:2019.4
antagonist of 5-HT1A . Molecular modeling studies revealed differences in binding mode between compound 4b and buspirone, which might reflect variation of the ligands' affinity and potency in the 5-HT1A receptor. Compound 4b in silico models demonstrated drug-likeness properties and, contrary to buspirone, showed a metabolic stability in mouse liver microsomes system. Experimentally obtained value
为了发现一类新型的精神药物,已经合成了一系列的1H-咪唑并[2,1-f]嘌呤-2,4(3H,8H)-二酮的2-嘧啶基-哌嗪基-烷基衍生物。评价化合物对5-羟色胺5-HT1A,5-HT7和磷酸二酯酶PDE4和PDE10的体外亲和力。最有效的化合物2-嘧啶基-1-哌嗪基丁基-咪唑并[2,1-f]嘌呤-2,4-二酮(4b)是5-HT1A的强效选择性拮抗剂。分子模型研究表明,化合物4b与丁螺环酮之间的结合方式不同,这可能反映了5HT1A受体中配体亲和力和效力的变化。在计算机模拟模型中,化合物4b表现出药物相似性,并且与丁螺环酮相反,在小鼠肝微粒体系统中表现出代谢稳定性。在平行人工渗透率测定中,实验获得的4b的表观渗透率系数Papp值表明与血浆蛋白弱结合和高肠道吸收率的可能性。评估4b的抗抑郁药和抗焦虑药活性表明,在相同剂量的1.25 mg / kg时,两种活性均具有特异性。4b的抗抑郁和/或抗焦虑特性可能与其首过效应有关。