Asymmetric allylic substitution–isomerization to axially chiral enamides <i>via</i> hydrogen-bonding assisted central-to-axial chirality transfer
作者:Chao Sun、Xiaotian Qi、Xiao-Long Min、Xue-Dan Bai、Peng Liu、Ying He
DOI:10.1039/d0sc02828b
日期:——
Axiallychiral enamides bearing a N–C axis have been recently studied and were proposed to be valuable chiral building blocks, but a stereoselective synthesis has not been achieved. Here, we report the first enantioselective synthesis of axiallychiral enamides via a highly efficient, catalytic approach. In this approach, C(sp2)–N bond formation is achieved through an iridium-catalyzed asymmetric allylation
Photoreductive Removal of <i>O</i>-Benzyl Groups from Oxyarene <i>N</i>-Heterocycles Assisted by <i>O</i>-Pyridine–pyridone Tautomerism
作者:Aleksandar R. Todorov、Tom Wirtanen、Juho Helaja
DOI:10.1021/acs.joc.7b02775
日期:2017.12.15
groups from oxyarene N-heterocycles at positions capable for 2-/4-O-pyridine–2-/4-pyridone tautomerism. Blue light irradiation, a [Ru] or [Ir] photocatalyst, and ascorbic acid in a water–acetonitrile solution debenzylates a variety of aryl N-heterocycles cleanly and selectively. Ascorbic acid has two functions in the reaction. On the one hand, it protonates the N-heterocycles that reduces their reduction
[EN] MACROCYCLES AS CFTR MODULATORS<br/>[FR] MACROCYCLES EN TANT QUE MODULATEURS DE CFTR
申请人:IDORSIA PHARMACEUTICALS LTD
公开号:WO2022194399A1
公开(公告)日:2022-09-22
The present invention relates to macrocyclic compounds of Formula (I) wherein Ar1, Ar2, R1, R2, R3, R4, and X are as described in the description, their preparation, to pharmaceutically acceptable salts thereof, and to their use as pharmaceuticals, to pharmaceutical compositions containing one or more compounds of Formula (I), and especially to their use as modulators of CFTR.