17BETA-HYDROXYSTEROID DEHYDROGENASE TYPE 1 INHIBITORS FOR THE TREATMENT OF HORMONE-RELATED DISEASES
申请人:Hartmann Rolf
公开号:US20110046147A1
公开(公告)日:2011-02-24
The invention relates to 17beta-hydroxysteroid dehydrogenase type 1 (17betaHSD1) inhibitors, the preparation thereof and the use thereof for the treatment and prophylaxis of hormone-related, especially estrogen-related or androgen-related, diseases.
Trithiocarbonate Anion as a Sulfur Source for the Synthesis of 2,5-Disubstituted Thiophenes and 2-Substituted Benzo[<i>b</i>]thiophenes
作者:Douglas B. Paixão、Daniel S. Rampon、Helena D. Salles、Eduardo G. O. Soares、Filipe N. Bilheri、Paulo H. Schneider
DOI:10.1021/acs.joc.0c01516
日期:2020.10.16
CS2 and KOH in dimethyl sulfoxide by a simple method and used as a novel synthetic equivalent of the S2–synthon for the synthesis of 2,5-disubstituted thiophenes from 1,3-butadiynes. Additionally, this system was employed for the metal-free synthesis of 2-substituted benzo[b]thiophenes from 2-haloalkynyl (hetero)arenes. These compounds were obtained from a cheap and readily available sulfur source in
通过简单的方法,由CS 2和KOH在二甲基亚砜中原位生成三硫代碳酸根阴离子(CS 3 2-),并用作S 2-合成子的新型合成等价物,用于由1合成2,5-二取代的噻吩。 ,3-丁二炔。另外,该体系用于由2-卤代炔基(杂)芳烃的无金属合成2-取代的苯并[ b ]噻吩。这些化合物是从廉价且容易获得的硫源中获得的,具有中等至良好的收率,并具有良好的官能团耐受性。
Site-Differentiated Polyboron Arenes Prepared by Direct CH Borylation and Their Highly Selective Suzuki-Miyaura Cross-Coupling Reactions
作者:Liang Xu、Siyi Ding、Pengfei Li
DOI:10.1002/anie.201309546
日期:2014.2.10
boronyl (Bpin), were prepared by an iridium‐catalyzed direct CHborylation of readily available (hetero)aryl MIDA boronates. The excellent synthetic uses of these multisite nucleophiles were demonstrated by the high‐yield production of a variety of multifunctionalized poly(hetero)arenes with the highly chemoselective Suzuki–Miyauracoupling (SMC) of the Bpin moiety being an essential step.
New Insights into the SAR and Binding Modes of Bis(hydroxyphenyl)thiophenes and -benzenes: Influence of Additional Substituents on 17β-Hydroxysteroid Dehydrogenase Type 1 (17β-HSD1) Inhibitory Activity and Selectivity
17 beta-Hydroxystcroid dehydrogenase type 1 (17 beta-HSD1) is responsible for the catalytic reduction of weakly active E1 to highly potent E2. E2 stimulates the proliferation of hormone-dependent diseases via activation of the estrogen receptor alpha (ER alpha). Because of the overexpression of 17 beta-HSD1 in mammary tumors, this enzyme should be an attractive target for the treatment of estrogen-dependent pathologies. Recently, we have reported on a series of potent 17 beta-HSD1 inhibitors: bis(hydroxyphenyl) azoles, thiophenes, and benzenes. In this paper, different substituents are introduced into the core structure and the biological properties of the corresponding inhibitors are evaluated. Computational methods and analysis of different X-rays of 17 beta-HSD1 lead to identification of two different binding modes for these inhibitors. The fluorine compound 23 exhibits an IC50 of 8 nM and is the most potent nonsteroidal inhibitor described so far. It also shows a high selectivity (17 beta-HSD2, ER alpha) and excellent pharmacokinetic properties after peroral application to rats.
17BETA-HYDROXYSTEROID-DEHYDROGENASE-TYP1-INHIBITOREN ZUR BEHANDLUNG HORMONABHÄNGIGER ERKRANKUNGEN