[EN] IMIDAZOPYRIDAZINES USEFUL AS INHIBITORS OF THE PAR-2 SIGNALING PATHWAY<br/>[FR] IMIDAZOPYRIDAZINES UTILES EN TANT QU'INHIBITEURS DE LA VOIE DE SIGNALISATION PAR-2
申请人:VERTEX PHARMA
公开号:WO2015048245A1
公开(公告)日:2015-04-02
The present invention relates to compounds useful as inhibitors of the PAR-2 signaling pathway. The invention also relates to pharmaceutically acceptable compositions comprising the compounds of this invention; methods of treating of various diseases, disorders, and conditions using the compounds of this invention; processes for preparing the compounds of this invention; intermediates for the preparation of the compounds of this invention; and methods of using the compounds in in vitro applications, such as the study of GPCRs in biological and pathological phenomena; the study of intracellular signal transduction pathways mediated by such GPCRs; and the comparative evaluation of new inhibitors of the PAR-2 signaling pathway. The compounds of this invention have formula I: wherein the variables are as defined herein.
Access to Vinyl Ethers and Ketones with Hypervalent Iodine Reagents as Oxy‐Allyl Cation Synthetic Equivalents
作者:Nina Declas、Jerome Waser
DOI:10.1002/ange.202006707
日期:2020.10.5
use of hypervalent iodine reagents. Under mild basic conditions, the addition of nucleophiles to aryloxy‐substituted vinylbenziodoxolone (VBX) reagents, easily available in two steps from silyl alkynes, resulted in the stereoselective formation of substituted aryl enol ethers. The reaction was most efficient with phenols as nucleophiles, but preliminary results were also achieved for C‐ and N‐ nucleophiles
作者:Dominic R. Willcox、Daniel M. De Rosa、Jack Howley、Abigail Levy、Alan Steven、Gary S. Nichol、Carole A. Morrison、Michael J. Cowley、Stephen P. Thomas
DOI:10.1002/anie.202106216
日期:2021.9.13
reactivity at the aluminium hydride centre, switching off hydroalumination and instead enabling selective reactions at the alkyne C−H σ-bond. Chemoselective C−H borylation was observed across a series of aryl- and alkyl-substituted alkynes (21 examples). On the basis of kinetic and density functional theory studies, a mechanism in which C−H borylation proceeds by σ-bondmetathesis between pinacolborane (HBpin)
5 mol%) and DABCO (1 mol%) selectively promotes the dehydrogenative borylation of both aromatic and aliphatic terminalalkynes to afford alkynylboronate derivatives in the presence of 1 equiv. of pinacolborane at 100 °C in toluene. This methodology is applicable to a variety of terminalalkynes (16 examples, yield: 62–93%).
ZnBr<sub>2</sub>-Catalyzed Dehydrogenative Borylation of Terminal Alkynes
作者:Man Luo、Yi Qin、Xi Chen、Qian Xiao、Binlin Zhao、Weiwei Yao、Mengtao Ma
DOI:10.1021/acs.joc.1c01936
日期:2021.12.3
The simple, commercially available ZnBr2 has been successfully employed as a highly efficient and chemoselective catalyst for the dehydrogenativeborylation of terminalalkynes with HBpin under mild conditions. It shows a good tolerance toward various functional groups such as aryl, alkyl, heteroaryl, etc. The plausible reaction mechanism has been investigated based on the corresponding stoichiometric