Synthesis, molecular modeling and biological evaluation of novel tadalafil analogues as phosphodiesterase 5 and colon tumor cell growth inhibitors, new stereochemical perspective
作者:Ashraf H. Abadi、Bernard D. Gary、Heather N. Tinsley、Gary A. Piazza、Mohammad Abdel-Halim
DOI:10.1016/j.ejmech.2009.10.046
日期:2010.4
absolute configuration of C-5 in the β-carboline-hydantoin and C-6 in the β-carboline-piperazinedione derivatives was found to be essential for the PDE5 inhibition. In addition, tadalafil analogues that were synthesized from l-tryptophan were more active than those derived from d-tryptophan, which is of economic value and expands the horizon for the discovery of new carbolines as PDE5 inhibitors. While
合成新的他达拉非类似物,其中苯并二恶唑部分被2-溴苯基取代;手性碳从R,R到R,S,S,R和S,S摆动; 描述了将哌嗪二酮环维持或还原为5-元咪唑烷二酮或噻吩并咪唑啉酮。评价制备的类似物抑制环鸟苷单磷酸(cGMP)选择性磷酸二酯酶5(PDE5)同工酶和人类HT-29结肠腺癌细胞生长的能力。在[R发现β-咔啉-乙内酰脲中C-5的绝对构型和β-咔啉-哌嗪二酮衍生物中的C-6的绝对构型对于抑制PDE5是必不可少的。另外,从1-色氨酸合成的他达拉非类似物比从d-色氨酸衍生的他达拉非类似物更具活性,这具有经济价值并且为发现作为PDE5抑制剂的新咔啉开辟了视野。虽然一些类似物显示出有效的肿瘤细胞生长抑制活性,但与它们的PDE5抑制活性没有明显的相关性,这使我们得出结论,可能涉及其他PDE同工酶或PDE5剪接变体。