Conformationally Constrained Analogues of <i>N</i>-(Piperidinyl)-5-(4-Chlorophenyl)-1-(2,4- Dichlorophenyl)-4-Methyl-1<i>H</i>-Pyrazole-3-Carboxamide (SR141716): Design, Synthesis, Computational Analysis, And Biological Evaluations
作者:Yanan Zhang、Jason P. Burgess、Marcus Brackeen、Anne Gilliam、S. Wayne Mascarella、Kevin Page、Herbert H. Seltzman、Brian F. Thomas
DOI:10.1021/jm8000778
日期:2008.6.1
extensively documented, however, the conformational properties of this class have received less attention. In an attempt to better understand ligand conformations optimal for receptor recognition, we have designed and synthesized a number of derivatives of 1, including a four-carbon-bridged molecule (11), to constrain rotation of the diaryl rings. Computational analysis of 11 indicates approximately 20
1(SR141716)的结构-活性关系(SARs)已被大量文献记录,但是,此类的构象性质受到的关注较少。为了更好地理解最适合受体识别的配体构象,我们设计并合成了1的许多衍生物,包括四碳桥连分子(11),以限制二芳基环的旋转。对11的计算分析表明,两个芳基环的旋转大约有20 kcal / mol的能垒。NMR研究确定了约18 kcal / mol的能垒,并暗示可能存在阻转异构体。与1相比,这些化合物的受体结合和功能研究显示出降低的亲和力和效价。