Synthesis and SAR of novel, 4-(phenylsulfamoyl)phenylacetamide mGlu4 positive allosteric modulators (PAMs) identified by functional high-throughput screening (HTS)
作者:Darren W. Engers、Patrick R. Gentry、Richard Williams、Julie D. Bolinger、C. David Weaver、Usha N. Menon、P. Jeffrey Conn、Craig W. Lindsley、Colleen M. Niswender、Corey R. Hopkins
DOI:10.1016/j.bmcl.2010.07.007
日期:2010.9
Herein we disclose the synthesis and SAR of a series of 4-(phenylsulfamoyl)phenylacetamide compounds as mGlu4 positive allosteric modulators (PAMs) that were identified via a functional HTS. An iterative parallel approach to these compounds culminated in the discovery of VU0364439 (11) which represents the most potent (19.8 nM) mGlu4 PAM reported to date.
Abstract To explore the potential use of CDK inhibitors in pancreatic ductal adenocarcinoma (PDAC) therapy, a series of novel 2-((4-sulfamoylphenyl)amino)-pyrrolo[2,3-d]pyrimidine derivatives was designed, synthesised, and investigated for inhibition on both CDK kinase activity and cellular proliferation of pancreatic cancer. Most of new sulphonamide-containing derivatives demonstrated strong inhibitory
RN-9893 in TRPV4 current inhibition rates (87.6 % and 83.2 % at 10 μM, against RN-9893′s 49.4 %). For the first time, these RN-9893 analogues were profiled in an mouse model, where intraperitoneal injections of or at 10 mg/kg notably mitigated symptoms of acutelunginjury induced by lipopolysaccharide (LPS). These outcomes indicate that compounds and are promising candidates for acutelunginjury treatment
Potent Non-Nucleoside Inhibitors of the Measles Virus RNA-Dependent RNA Polymerase Complex
作者:Aiming Sun、Jeong-Joong Yoon、Yan Yin、Andrew Prussia、Yutao Yang、Jaeki Min、Richard K. Plemper、James P. Snyder
DOI:10.1021/jm701239a
日期:2008.7
Measles virus (MV) is one of the most infectious pathogens known. In spite of the existence of a vaccine, approximately 350000 deaths/year result from MV or associated complications. Antimeasles compounds Could conceivably diminish these statistics and provide a therapy that complements vaccine treatment. We recently described a high-throughput screening hit compound 1 (16677) against MV-infected cells with the capacity to eliminate viral reproduction at 250 nM by inhibiting the action of the virus's RNA-dependent RNA polymerase complex (RdRp). The compound, 1-methyl-3-(trifluoroi-nethyl)-N-[4-sulfonylphenyl]-1H-pyrazole-5-carboxamide, 1 carries a critical CF3 moiety on the 1,2-pyrazole ring. Elaborating on the preliminary structure-activity (SAR) study, the present work presents the synthesis and SAR of a much broader range of low nanomolar nonpeptidic MV inhibitors and speculates on the role of the CF3 functionality.
Discovery of Sulfonamidebenzamides as Selective Apoptotic CHOP Pathway Activators of the Unfolded Protein Response
作者:Daniel P. Flaherty、Justin R. Miller、Danielle M. Garshott、Michael Hedrick、Palak Gosalia、Yujie Li、Monika Milewski、Eliot Sugarman、Stefan Vasile、Sumeet Salaniwal、Ying Su、Layton H. Smith、Thomas D. Y. Chung、Anthony B. Pinkerton、Jeffrey Aubé、Michael U. Callaghan、Jennifer E. Golden、Andrew M. Fribley、Randal J. Kaufman
DOI:10.1021/ml5003234
日期:2014.12.11
Cellular proteins that fail to fold properly result in inactive or disfunctional proteins that can have toxic functions. The unfolded protein response (UPR) is a two-tiered cellular mechanism initiated by eukaryotic cells that have accumulated misfolded proteins within the endoplasmic reticulum (ER). An adaptive pathway facilitates the clearance of the undesired proteins; however, if overwhelmed, cells trigger apoptosis by upregulating transcription factors such as C/EBP-homologous protein (CHOP). A high throughput screen was performed directed at identifying compounds that selectively upregulate the apoptotic CHOP pathway while avoiding adaptive signaling cascades, resulting in a sulfonamidebenzamide chemotype that was optimized. These efforts produced a potent and selective CHOP inducer (AC(50) = 0.8 mu M; XBP1 > 80 mu M), which was efficacious in both mouse embryonic fibroblast cells and a human oral squamous cell cancer cell line, and demonstrated antiproliferative effects for multiple cancer cell lines in the NCI-60 panel.