Synthesis of 5-aryl-3H-[1,3,4]oxadiazol-2-ones from N′-(chloro-aryl-methylene)-tert-butylcarbazates using basic alumina as an efficient and recyclable surface under solvent-free condition
摘要:
The synthesis of biologically important 5-aryl-3H-[1,3,4]oxadiazol-2-ones has been carried out by heating the easily synthesized N'-(chloro-aryl-methylene)-tert-butylcarbazates on basic alumina surface under solvent-free condition. The dual characteristic of basic alumina as a solid support as well as a nucleophile is successfully exploited in these reactions. The method provides special attributions such as reduced reaction times, easier work-up procedures, and good to excellent yields as well as increased purity of products and most importantly environmentally friendly protocols. The basic alumina is easily recovered and utilized for further reactions several times without serious loss of activity. (C) 2012 Elsevier Ltd. All rights reserved.
[EN] COMBINATION PHARMACEUTICAL AGENTS AS RSV INHIBITORS<br/>[FR] AGENTS PHARMACEUTIQUES EN COMBINAISON EN TANT QU'INHIBITEURS DE RSV
申请人:ENANTA PHARM INC
公开号:WO2019067864A1
公开(公告)日:2019-04-04
The present invention relates to pharmaceutical agents administered to a subject either in combination or in series for the treatment of a Respiratory Syncytial Virus (RSV) infection, wherein treatment comprises administering a compound effective to inhibit the function of the RSV and an additional compound or combinations of compounds having anti-RSV activity.
[EN] BENZODIAZEPINE DERIVATIVES AS RSV INHIBITORS<br/>[FR] DÉRIVÉS BENZODIAZÉPINE UTILISÉS COMME INHIBITEURS DU VIRUS RESPIRATOIRE SYNCYTIAL (RSV)
申请人:ENANTA PHARM INC
公开号:WO2017015449A1
公开(公告)日:2017-01-26
The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit Respiratory Syncytial Virus (RSV). The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from RSV infection. The invention also relates to methods of treating an RSV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which inhibit Respiratory Syncytial Virus (RSV). The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from RSV infection. The invention also relates to methods of treating an RSV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
Combination pharmaceutical agents as RSV inhibitors
申请人:Enanta Pharmaceuticals, Inc.
公开号:US10881666B2
公开(公告)日:2021-01-05
The present invention relates to pharmaceutical agents administered to a subject either in combination or in series for the treatment of a Respiratory Syncytial Virus (RSV) infection, wherein treatment comprises administering a compound effective to inhibit the function of the RSV and an additional compound or combinations of compounds having anti-RSV activity.
5-Phenyl-1,3,4-oxadiazol-2(3<i>H</i>)-ones Are Potent Inhibitors of Notum Carboxylesterase Activity Identified by the Optimization of a Crystallographic Fragment Screening Hit
作者:William Mahy、Nicky J. Willis、Yuguang Zhao、Hannah L. Woodward、Fredrik Svensson、James Sipthorp、Luca Vecchia、Reinis R. Ruza、James Hillier、Svend Kjær、Sarah Frew、Amy Monaghan、Magda Bictash、Patricia C. Salinas、Paul Whiting、Jean-Paul Vincent、E. Yvonne Jones、Paul V. Fish
DOI:10.1021/acs.jmedchem.0c01391
日期:2020.11.12
Carboxylesterase Notum is a negative regulator of the Wnt signaling pathway. There is an emerging understanding of the role Notum plays in disease, supporting the need to discover new small-molecule inhibitors. A crystallographic X-ray fragment screen was performed, which identified fragment hit 1,2,3-triazole 7 as an attractive starting point for a structure-based drug design hit-to-lead program. Optimization of 7 identified oxadiazol-2-one 23dd as a preferred example with properties consistent with druglike chemical space. Screening 23dd in a cell-based TCF/LEF reporter gene assay restored the activation of Wnt signaling in the presence of Notum. Mouse pharmacokinetic studies with oral administration of 23dd demonstrated good plasma exposure and partial blood-brain barrier penetration. Significant progress was made in developing fragment hit 7 into lead 23dd (>600-fold increase in activity), making it suitable as a new chemical tool for exploring the role of Notum-mediated regulation of Wnt signaling.