Disclosed are novel substituted 2H-isoquinolin-1-one and 3H-quinazolin-4-one derivatives useful as inhibitors of Rho kinase and for treating a variety of diseases and disorders that are mediated or sustained through the activity of Rho kinase, including cardiovascular diseases, pharmaceutical compositions comprising such compounds, methods for using such compounds and processes for making such compounds.
1,3,2‐Diazaphospholenes Catalyze the Conjugate Reduction of Substituted Acrylic Acids
作者:John H. Reed、Nicolai Cramer
DOI:10.1002/cctc.202000662
日期:2020.9.4
nucleophilicity and remarkablylow basicity of 1,3,2‐diazaphospholenes (DAPs) is exploited in a catalytic, metal‐free 1,4‐reduction of free α,β‐unsaturated carboxylic acids. Notably, the reduction occurs without a prior deprotonation of the carboxylic acid moiety and hence does not consume an additional hydride equivalent. This highlights the excellent nucleophilic character and low basicity of DAP‐hydrides
A novel approach to the solid supported synthesis of hydroxamicacids was developed. It employs oxime resin and unlike all previously reported methods allows for the use of acid labile protecting groups. Cleavage is induced by treatment with tert-butyldimethylsilyl-O-hydroxylamine, followed by silyl group deprotection with trifluoroacetic acid.
A novel electrophilic N-amidation via electron deficient complexes : Action of ferric chloride on N-acetyloxyamides
作者:Marc Cherest、Xavier Lusinchi
DOI:10.1016/s0040-4039(01)80290-2
日期:——
The action of FeCl3 on N-acetyloxyamides leads to electron deficient species which can react intra or intermolecularly with an aromatic group to give oxindoles or analogues.
The present disclosure is generally directed to antiviral compounds, and more specifically directed to compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such compounds, and methods for inhibiting the function of the NS5A protein.