Rational design and optimization of selenophenes with basic side chains as novel potent selective estrogen receptor modulators (SERMs) for breast cancer therapy
Selenophenes: Introducing a New Element into the Core of Non-Steroidal Estrogen Receptor Ligands
作者:Silong Zhang、Zhiyong Wang、Zhiye Hu、Changhao Li、Chu Tang、Kathryn E. Carlson、Junjie Luo、Chune Dong、John A. Katzenellenbogen、Jian Huang、Hai-Bing Zhou
DOI:10.1002/cmdc.201600593
日期:2017.2.3
marked effect on their binding affinities. The compound bis(2‐fluoro‐4‐hydroxyphenyl)selenophene (2 f) has the highest relative binding affinity (RBA) of 24.3 for ERβ. In transcription assays, most selenophenes were found to exhibit partial to full agonist activity for both ER subtypes, with compounds bis(2‐methyl‐4‐hydroxyphenyl)selenophene (2 b), bis(4‐fluoro‐3‐hydroxyphenyl)3‐bromoselenophene (6 f),
Rational design and optimization of selenophenes with basic side chains as novel potent selective estrogen receptor modulators (SERMs) for breast cancer therapy
Selenophenes with basic side chains showed excellent antagonist activity for ERs and increased antiproliferative activity than that of 4OHT in MCF-7 cells.
Copper(II)-Mediated Intramolecular Cyclization of (Z)-Chalcogenoenynes: Synthesis of 3-Halochalcogenophene Derivatives
作者:Daniela A. Barancelli、Ricardo F. Schumacher、Marlon R. Leite、Gilson Zeni
DOI:10.1002/ejoc.201100992
日期:2011.11
We present our results on the cyclization of (Z)-chalcogenoenynes mediated by copper(II) salts to afford 3-halochalcogenophenes in satisfactory yields through an intramolecular 5-endo-dig cyclization. The methodology was carried out using CuCl2 at 50 °C or CuBr2 at room temperature under an ambient atmosphere. The reaction took place under very mild reaction conditions and tolerated considerable functionality
我们展示了由铜 (II) 盐介导的 (Z)-硫属元素烯环化的结果,通过分子内 5-endo-dig 环化以令人满意的产率提供 3-卤代硫属元素烯。该方法是在 50 °C 下使用 CuCl2 或在室温下在环境气氛下使用 CuBr2 进行的。该反应在非常温和的反应条件下进行并且耐受相当大的官能度。在钯催化的与硼酸的交叉偶联反应中,将一种 3-溴-硒吩衍生物用作底物,以良好的收率得到 Suzuki 型产物。