Various novel arylated estrone derivatives, such as 2-aryl-, 4-aryl- and 2,4-diaryl-estrones, by Suzuki-Miyaura reactions. While the synthesis of 4-arylestrones could be carried out under standard conditions, the synthesis of 2-arylestrones and 2,4-diarylestrones required a thorough optimization of the conditions and it proved to be important to use sterically encumbered biaryl ligands. The best results were obtained by the use of RuPhos. Combination of developed Suzuki coupling reactions with subsequent cyclization reactions afforded more complex hybrid structures, containing dibenzofuran, benzocoumarin and steroid moieties. These derivatives were tested as pancreatic lipase inhibitors and it was found that most of the compounds exhibited inhibition of pancreatic lipase but the maximum inhibitory potential was shown by 4-arylestrones. All of the synthesized derivatives showed inhibitory values in the range of 0.82±0.01 to 59.7±3.12 μM. The biological activity was also rationalized on the bases of docking studies.

中文翻译：

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（+）-雌激素的丙烯酸化衍生物的合成，功能化和生物活性

通过Suzuki-Miyaura反应，各种新颖的芳基化的雌酮衍生物，例如2-芳基-，4-芳基-和2,4-二芳基-雌酮。虽然4-芳基雌酮的合成可以在标准条件下进行，但是2-芳基雌酮和2,4-二芳基雌酮的合成需要对条件进行彻底优化，事实证明，使用空间受限的联芳基配体很重要。使用RuPhos可获得最佳结果。发达的Suzuki偶联反应与后续环化反应的结合提供了更复杂的杂化结构，其中包含二苯并呋喃，苯并香豆素和类固醇部分。测试了这些衍生物作为胰脂肪酶抑制剂的作用，发现大多数化合物都显示出对胰脂肪酶的抑制作用，但最大的抑制潜力是由4-芳基雌酮显示的。所有合成的衍生物均显示出在0.82±0.01至59.7±3.12μM范围内的抑制值。在对接研究的基础上，生物活性也得到了合理化。