Structure−Activity Relationships of a New Family of Steroidal Aromatase Inhibitors. 1. Synthesis and Evaluation of a Series of Analogs Related to 19-[(Methylthio)methyl]androstenedione (RU54115)
During the course of a study aimed at the search for new potent aromatase inhibitors, several new androstenedione analogs were synthesized and evaluated. This study led to the discovery of 19-[(methylthio)methyl]androsta-4,9(11)-diene-3,17-dione (7; RU54115) already described by our laboratory. The object of the present series of papers is to disclose the result of the structure-activity relationship
Disclosed are novel compounds and compositions for inhibition of androgen and estrogen receptor signaling, methods for inhibiting androgen signaling, methods for inhibiting estrogen signaling, methods for inhibiting the interaction between a co-regulatory protein and an androgen or estrogen receptor, and methods for treating cancer.
Synthesis and evaluation of 11β-(4-Substituted phenyl) estradiol analogs: Transition from estrogen receptor agonists to antagonists
作者:Robert N. Hanson、Edward Hua、J. Adam Hendricks、David Labaree、Richard B. Hochberg
DOI:10.1016/j.bmc.2012.04.041
日期:2012.6
Introduction As part of our program to develop estrogen receptor (ER) targeted imaging and therapeutic agents we chose to evaluate 11β-substituted estradiol analogs as a representative scaffold. Previous synthetic studies provided an entry into this class of compounds and other work indicated that 11β-(substituted aryl) estradiol analogs were potent antagonists of the ER. Little information existed
介绍 作为我们开发雌激素受体 (ER) 靶向成像和治疗剂计划的一部分,我们选择评估 11β 取代的雌二醇类似物作为代表性支架。先前的合成研究提供了此类化合物的入门资料,其他工作表明 11β-(取代芳基)雌二醇类似物是 ER 的有效拮抗剂。关于 11β-芳基雌二醇类似物从激动到拮抗转变所涉及的具体结构特征或其作为药物缀合支架的潜力的信息很少。 方法 我们使用现有合成方法的改进制备并表征了一系列 11β-(4-取代苯基)雌二醇类似物。新化合物以及标准类固醇激动剂和拮抗剂作为 ERβ-LBD 的竞争性配体进行了评估。功能测定使用石川细胞中碱性磷酸酶的诱导来确定化合物作为 ER 激动剂或拮抗剂的效力。 结果 该合成策略成功生成了一系列化合物,其中4-取代基依次从羟基修饰为甲氧基再修饰为叠氮基乙氧基/ N , N-二甲基氨基乙氧基,最终修饰为典型的含1,4-萘醌部分。这些新化合物均对 ERα-LBD
Convergent synthesis of a steroidal antiestrogen-mitomycin C hybrid using “click” chemistry
作者:Robert N. Hanson、Edward Hua、David Labaree、Richard B. Hochberg、Kyle Proffitt、John M. Essigmann、Robert G. Croy
DOI:10.1039/c2ob25902h
日期:——
A convergentsynthesis of a novel estrogen receptor-targeted drug hybrid was developed based on structures of the potent anti-proliferative mitomycin C and the steroidal anti-estrogen RU 39411. The steroidal antiestrogen was prepared with an azido-triethylene glycoloxy linker while the mitomycin C derivative (porfirimycin) incorporated a complementary 7-N-terminal alkyne. The two components were ligated
As part of continuing studies on the synthesis of new, biologically interesting 11 beta-substituted steroidalspirolactones, we describe here the competition between 10 beta-propargylation and 11 beta-allenylation. Grignard addition of allenyl magnesium bromide to an appropriate 5,10-epoxy-9(11)-olefin provides 10 beta-propargylation or 11 beta-allenylation. The role of the catalytic effect of copper