Regio- and Stereoselective 5-exo Radical Cyclizations on a Chiral Perhydro-1,3-benzoxazine Moiety. An Access to Enantiopure 3-Alkylpyrrolidines
摘要:
Both enantiomers of chiral, nonracemic S-alkyl-substituted pyrolidines are prepared by diastereoselective 5-exo-trig cyclization on (-)-8-aminomenthol-derived perhydro-1,3-benzoxazines used as chiral auxiliaries, followed by elimination of the menthol appendage. The diastereoselective radical cyclization is promoted by tributyltin hydride and occurs on a 3-aza-5-hexenyl-type radical, leading to five-membered rings in high yield. The stereocontrol of the cyclization is strongly influenced by 1,3-allylic strain so that an appropriate substitution pattern on the olefin-acceptor and the presence of a vicinal stereocenter are crucial for achieving good diastereoselectivity. The enantiopure pyrrolidines are obtained in three steps with concomitant recovering of the starting (+)-pulegone auxiliary.
Structure–activity relationship studies of SETD8 inhibitors
作者:Anqi Ma、Wenyu Yu、Yan Xiong、Kyle V. Butler、Peter J. Brown、Jian Jin
DOI:10.1039/c4md00317a
日期:——
Comprehensive SAR studies of the first substrate-competitive SETD8 inhibitor led to the discovery of interesting SAR trends and novel analogs.
对第一个底物竞争性SETD8抑制剂的全面SAR研究揭示了有趣的SAR趋势和新颖的类似物。
Optimization of Potent ATAD2 and CECR2 Bromodomain Inhibitors with an Atypical Binding Mode
作者:Simon C. C. Lucas、Stephen J. Atkinson、Paul Bamborough、Heather Barnett、Chun-wa Chung、Laurie Gordon、Darren J. Mitchell、Alexander Phillipou、Rab K. Prinjha、Robert J. Sheppard、Nicholas C. O. Tomkinson、Robert J. Watson、Emmanuel H. Demont
DOI:10.1021/acs.jmedchem.0c00021
日期:2020.5.28
Most bromodomaininhibitors mimic the interactions of the natural acetylated lysine (KAc) histone substrate through key interactions with conserved asparagine and tyrosine residues within the binding pocket. Herein we report the optimization of a series of phenyl sulfonamides that exhibit a novel mode of binding to non-bromodomain and extra terminal domain (non-BET) bromodomains through displacement
Discovery of an MLLT1/3 YEATS Domain Chemical Probe
作者:Moses Moustakim、Thomas Christott、Octovia P. Monteiro、James Bennett、Charline Giroud、Jennifer Ward、Catherine M. Rogers、Paul Smith、Ioanna Panagakou、Laura Díaz-Sáez、Suet Ling Felce、Vicki Gamble、Carina Gileadi、Nadia Halidi、David Heidenreich、Apirat Chaikuad、Stefan Knapp、Kilian V. M. Huber、Gillian Farnie、Jag Heer、Nenad Manevski、Gennady Poda、Rima Al-awar、Darren J. Dixon、Paul E. Brennan、Oleg Fedorov
DOI:10.1002/anie.201810617
日期:2018.12.10
YEATS domain (YD) containing proteins are an emerging class of epigenetic targets in drug discovery. Dysregulation of these modified lysine-binding proteins has been linked to the onset and progression of cancers. We herein report the discovery and characterisation of the first small-molecule chemical probe, SGC-iMLLT, for the YD of MLLT1 (ENL/YEATS1) and MLLT3 (AF9/YEATS3). SGC-iMLLT is a potent and
Discovery and Characterization of Selective and Ligand-Efficient DYRK Inhibitors
作者:Scott H. Henderson、Fiona Sorrell、James Bennett、Oleg Fedorov、Marcus T. Hanley、Paulo H. Godoi、Roberta Ruela de Sousa、Sean Robinson、Alexander Ashall-Kelly、Iva Hopkins Navratilova、Daryl S. Walter、Jonathan M. Elkins、Simon E. Ward
DOI:10.1021/acs.jmedchem.1c01115
日期:2021.8.12
pyrazolo[1,5-b]pyridazine inhibitors with excellent ligand efficiencies, good physicochemical properties, and a high degree of selectivity over the kinome. Compound 11 exhibited good permeability and cellular activity without P-glycoprotein liability, extending the utility of 11 in an in vivo setting. These pyrazolo[1,5-b]pyridazines are a viable lead series in the discovery of new therapies for the
双特异性酪氨酸调节激酶 1A (DYRK1A) 调节大脑发育过程中神经元祖细胞的增殖和分化。因此,DYRK1A 作为治疗神经退行性疾病(包括阿尔茨海默病(AD)和唐氏综合症)的靶标引起了人们的兴趣。最近,DYRK1A 的抑制已被研究为糖尿病的潜在治疗方法,而 DYRK1A 作为细胞周期介质的作用引起了人们对肿瘤适应症的兴趣。构效关系(SAR)分析与高分辨率X射线晶体学相结合,产生了一系列吡唑并[1,5- b ]哒嗪抑制剂,具有优异的配体效率、良好的理化性质以及对其他药物的高度选择性。激酶。化合物11表现出良好的渗透性和细胞活性,且无需 P-糖蛋白,从而扩展了11在体内环境中的效用。这些吡唑并[1,5- b ]哒嗪是发现治疗与 DYRK1A 功能相关疾病的新疗法的可行的先导系列。
[EN] HETEROARYLCARBOXAMIDE DERIVATIVES AS PLASMA KALLIKREIN INHIBITORS<br/>[FR] UTILISATION DE DÉRIVÉS HÉTÉROARYLCARBOXAMIDES COMME INHIBITEURS DE LA KALLICRÉINE PLASMATIQUE
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2017072020A1
公开(公告)日:2017-05-04
The present invention relates to compounds of general formula I, wherein D1 to D3, A, R1, R2, Y and n are defined as in claim 1, which have valuable pharmacological properties, in particular are inhibitors of plasma kallikrein. The compounds are suitable for treatment and prevention of diseases which can be influenced by influenced by inhibition of plasma kallikrein, such as diabetic complications, particularly in the treatment of retinal vascular permeability associated with diabetic retinopathy and diabetic macular edema.