Synthesis and pharmacological evaluation of imidazoline sites I1 and I2 selective ligands
作者:Maria Anastassiadou、Saı̈da Danoun、Louis Crane、Geneviève Baziard-Mouysset、Marc Payard、Daniel-Henri Caignard、Marie-Claire Rettori、Pierre Renard
DOI:10.1016/s0968-0896(00)00280-7
日期:2001.3
heterocyclic-imidazoline compounds have been prepared and evaluated in vitro as imidazoline sites (I1 and I2) and alpha-adrenergic (alpha1 and alpha2) receptor ligands. Their pKi values indicate that linkage of the imidazoline moiety at the 2-position with an aromatic substituent dramatically decreases alpha-adrenergic affinity. I1 sites are more accessible by phenyl imidazolines substituted by a methyl or a methoxy
已经制备了几种系列的2-芳基或杂环-咪唑啉化合物,并在体外评估为咪唑啉位点(I1和I2)和α-肾上腺素能(α1和α2)受体配体。它们的pKi值表明2-位咪唑啉部分与芳族取代基的连接显着降低了α-肾上腺素的亲和力。通过在邻位或间位上被甲基或甲氧基取代的苯基咪唑啉更易于接近I1位点。实际上,2-(2'-甲氧基苯基)-咪唑啉(17)是有史以来最好的I1配体之一(pKi = 8.53,I1 / I2> 3388)。另一方面,在对位中存在甲基时,I 2选择性增加。原始化合物2-(3'-氟-4'-甲苯基)-咪唑啉(31)是I2位点的新有效配体,具有高选择性(pKi = 8。