substituents on both the sulfonamide nitrogen and phenyl group of OBHSA unit had significant effect on biological activities. Among them, conjugate 16i with N-methyl and naphthyl groups exhibited potent antiproliferative activity against MCF-7 cells, and excellent ERα degradation activity and HDACs inhibitory ability. A further molecular docking study indicated the interaction patterns of these conjugates
Identification of Novel Dual-Target Estrogen Receptor α Degraders with Tubulin Inhibitory Activity for the Treatment of Endocrine-Resistant Breast Cancer
Endocrine resistance remains a significant problem in the clinical treatment of estrogen receptor α-positive (ERα+) breast cancer (BC). In this study, we developed a series of novel dual-functional ERα degraders based on a bridged bicyclic scaffold with selenocyano (SeCN) side chains. These compounds displayed potent ERα degradation and tubulin depolymerization activity. Among them, compounds 35s and
Bicyclic core estrogens as full antagonists: synthesis, biological evaluation and structure–activity relationships of estrogen receptor ligands based on bridged oxabicyclic core arylsulfonamides
作者:Manghong Zhu、Chen Zhang、Jerome C. Nwachukwu、Sathish Srinivasan、Valerie Cavett、Yangfan Zheng、Kathryn E. Carlson、Chune Dong、John A. Katzenellenbogen、Kendall W. Nettles、Hai-Bing Zhou
DOI:10.1039/c2ob26531a
日期:——
Compounds that block estrogen action through the estrogenreceptor (ER) or downregulate ER levels are useful for the treatment of breast cancer and endocrine disorders. In our search for structurally novel estrogens having three-dimensional corescaffolds, we found some compounds with a 7-oxabicyclo[2.2.1]heptene core that bound well to the ERs. The best of these compounds, a phenyl sulfonate ester
通过雌激素受体 (ER) 阻断雌激素作用或下调 ER 水平的化合物可用于治疗乳腺癌和内分泌疾病。在我们寻找具有三维核心支架的结构新颖雌激素时,我们发现了一些具有 7-氧杂双环 [2.2.1] 庚烯核心的化合物,这些化合物与 ER 结合良好。这些化合物中最好的一种,苯磺酸酯(称为氧杂双环庚烯磺酸盐的 OBHS),是 ERα 和 ERβ 的部分拮抗剂。尽管 OBHS 与其他雌激素拮抗剂在结构上没有相似之处,但它似乎通过稳定 ER 的新构象来实现其部分拮抗剂特征,该构象涉及螺旋 11 的显着扭曲。为了增强这些氧杂双环[2.2.1]庚烷核心配体的拮抗剂特性,2 NR–),等电子和潜在的等结构分子置换。通过 3,4-二芳基呋喃的 Diels-Alder 反应,使用各种N-芳基乙烯基磺酰胺亲二烯体。虽然极性更大的仲磺酰胺是弱配体,但某些叔磺酰胺具有非常好的 ER 结合亲和力。在 HepG2 细胞报告基