Triazole Ligands Reveal Distinct Molecular Features That Induce Histamine H<sub>4</sub> Receptor Affinity and Subtly Govern H<sub>4</sub>/H<sub>3</sub> Subtype Selectivity
作者:Maikel Wijtmans、Chris de Graaf、Gerdien de Kloe、Enade P. Istyastono、Judith Smit、Herman Lim、Ratchanok Boonnak、Saskia Nijmeijer、Rogier A. Smits、Aldo Jongejan、Obbe Zuiderveld、Iwan J. P. de Esch、Rob Leurs
DOI:10.1021/jm1013488
日期:2011.3.24
a peripheral imidazole group. The imidazole ring posed some problems in the click chemistry putatively due to Cu(II) coordination, but Boc protection of the imidazole and removal of oxygen from the reaction mixture provided effective strategies. Pharmacological studies revealed two monosubstituted imidazoles (6h,p) with <10 nM H4R affinities and >10-fold H4R/H3R selectivity. Both compounds possess
组胺H 3(H 3 R)和H 4(H 4 R)受体引起了药物化学界的极大兴趣。鉴于它们相对较高的同源性,但治疗前景却大相径庭,因此对两种受体的配体选择性至关重要。我们使用具有[1,2,3]三唑核心的配体询问H 4 R / H 3 R的选择性。Cu(I)辅助的“点击化学”被用来组装各种[1,2,3]三唑化合物(6a - w和7a - f),许多含有外围咪唑基团。咪唑环可能由于Cu(II)配位而在点击化学中造成了一些问题,但是咪唑的Boc保护和从反应混合物中除去氧气提供了有效的策略。药理研究表明,两种单取代的咪唑(6h,p)的亲和力<10 nM H 4 R和H 4 R / H 3 R选择性> 10倍。两种化合物均具有环烷基甲基,并且似乎靶向H 4中的亲脂性口袋R具有很高的空间精度。[1,2,3]三唑支架的使用进一步证明了以下概念,即间隔区长度或外围基团的简单改变可以逆转对H 3 R的选择性。提
Microwave-assisted one-pot synthesis and anti-biofilm activity of 2-amino-1H-imidazole/triazole conjugates
作者:Hans Steenackers、Denis Ermolat'ev、Tran Thi Thu Trang、Bharat Savalia、Upendra K. Sharma、Ami De Weerdt、Anamik Shah、Jozef Vanderleyden、Erik V. Van der Eycken
DOI:10.1039/c3ob42282h
日期:——
A microwave-assisted protocol was developed for the construction of 2-amino-1H-imidazole/triazole conjugates with anti-biofilm activity.
开发了一种微波辅助协议,用于构建具有抗生物膜活性的2-氨基-1H-咪唑/三唑共轭物。
Gold-Catalyzed Carbene Transfer to Alkynes: Access to 2,4-Disubstituted Furans
作者:Søren Kramer、Troels Skrydstrup
DOI:10.1002/anie.201200307
日期:2012.5.7
example of a gold‐catalyzed intermolecular addition of carbon ylides to terminal alkynes is reported (see scheme; DCE=dichloroethane, Tf=trifluoromethanesulfonyl). Subsequent intramolecular trapping of the generated gold carbene completes a formal [3+2] cycloaddition, which represents a novel synthesis of 2,4‐disubstituted furans.
Pyrazole-Based Lactate Dehydrogenase Inhibitors with Optimized Cell Activity and Pharmacokinetic Properties
作者:Ganesha Rai、Daniel J. Urban、Bryan T. Mott、Xin Hu、Shyh-Ming Yang、Gloria A. Benavides、Michelle S. Johnson、Giuseppe L. Squadrito、Kyle R. Brimacombe、Tobie D. Lee、Dorian M. Cheff、Hu Zhu、Mark J. Henderson、Katherine Pohida、Gary A. Sulikowski、David M. Dranow、Md Kabir、Pranav Shah、Elias Padilha、Dingyin Tao、Yuhong Fang、Plamen P. Christov、Kwangho Kim、Somnath Jana、Pavan Muttil、Tamara Anderson、Nitesh K. Kunda、Helen J. Hathaway、Donna F. Kusewitt、Nobu Oshima、Murali Cherukuri、Douglas R. Davies、Jeffrey P. Norenberg、Larry A. Sklar、William J. Moore、Chi V. Dang、Gordon M. Stott、Leonard Neckers、Andrew J. Flint、Victor M. Darley-Usmar、Anton Simeonov、Alex G. Waterson、Ajit Jadhav、Matthew D. Hall、David J. Maloney
DOI:10.1021/acs.jmedchem.0c00916
日期:2020.10.8
of compounds, using structure-based design concepts, coupled with optimization of cellular potency, in vitro drug–target residence times, and in vivo PK properties, to identify first-in-class inhibitors that demonstrate LDH inhibition in vivo. The lead compounds, named NCATS-SM1440 (43) and NCATS-SM1441 (52), possess desirable attributes for further studying the effect of in vivo LDH inhibition.
6‐azido‐6‐deoxy‐α‐D‐mannopyranoside template was used as a core structure for binding to the angiogenic growth factors FGF‐1, FGF‐2, and VEGF. The core structure was diversified in a rapid, parallel manner by employing the CuI‐catalyzed Huisgen azide–alkyne cycloaddition (“click”) reaction. The diversity was further extended by incorporating a Swern oxidation–Wittig reaction sequence on a click adduct of propargyl
使用脱硫的甲基6-叠氮基-6-脱氧-α- D-甘露吡喃糖苷模板作为与血管生成生长因子FGF-1,FGF-2和VEGF结合的核心结构。通过使用Cu I,以快速,平行的方式使核心结构多样化催化的Huisgen叠氮化物-炔烃环加成(“点击”)反应。通过在炔丙醇的点击加合物上结合Swern氧化-Wittig反应序列进一步扩展了多样性。因此,硫酸化核心通过各种间隔基连接到选定的疏水或极性基序,这些基序设计用于探测生长因子阳离子硫酸乙酰肝素结合位点周围的蛋白质表面,以提高亲和力和选择性。通过表面等离振子共振溶液亲和力测定法测量化合物对生长因子的亲和力。铅化合物与朝向FGF-1都和VEGF(微摩尔的结合亲和力识别ķ d = 84和49μ中号超过FGF-2,分别地)和良好的选择性(29-和51倍,分别地)。