Chiral Nonsteroidal Affinity Ligands for the Androgen Receptor. 1. Bicalutamide Analogues Bearing Electrophilic Groups in the B Aromatic Ring
作者:Leonid Kirkovsky、Arnab Mukherjee、Donghua Yin、James T. Dalton、Duane D. Miller
DOI:10.1021/jm990027x
日期:2000.2.1
parent molecule were synthesized. These compounds were designed as affinity ligands for the androgen receptor (AR). We prepared the (R)- and (S)-optical isomers of these compounds as pure enantiomers. The AR binding affinities of these compounds were measured in a competitive binding assay with the radiolabeled high-affinity AR ligand, [(3)H]mibolerone. In accordance with our previous results for the enantiomers
合成了一系列在母体分子的芳香环B上带有亲电基团的比卡鲁胺手性类似物(异硫氰酸酯,N-氯乙酰基和N-溴乙酰基)。这些化合物被设计为雄激素受体(AR)的亲和配体。我们将这些化合物的(R)和(S)光学异构体制备为纯对映异构体。这些化合物的AR结合亲和力是用放射性标记的高亲和力AR配体[(3)H] mibolerone在竞争结合测定中测量的。根据我们先前关于比卡鲁胺的对映异构体的结果,我们发现,与它们相应的(S)异构体相比,所有(R)异构体均表现出对AR更高的结合亲和力。与相应的间位取代类似物相比,环B中的对位取代亲和配体以更高的亲和力结合AR。对于对位取代的化合物,硫酯亲和配体被氧化为它们的磺酰基类似物会降低AR结合亲和力,而类似的修饰会增加相应的对位类似物的结合亲和力。最无效的对位取代的磺酰基化合物比最有效的间位取代的磺酰基化合物具有更高的AR结合亲和力。总体而言,对位取代的未氧化分子表现出最