Synthesis and biological evaluation of phospholane and dihydrophosphole analogues of the glutamate receptor agonist AP4Electronic supplementry information (ESI) available: mode of epoxide ring-opening and experimental data for 2 and 3. See http://www.rsc.org/suppdata/p1/b2/b204891d/
Electronic Effects in Asymmetric Catalysis: Structural Studies of Precatalysts and Intermediates in Rh-Catalyzed Hydrogenation of Dimethyl Itaconate and Acetamidocinnamic Acid Derivatives Using <i>C</i><sub>2</sub>-Symmetric Diarylphosphinite Ligands
作者:T. V. RajanBabu、Branko Radetich、Kamfia K. You、Timothy A. Ayers、Albert L. Casalnuovo、Joseph C. Calabrese
DOI:10.1021/jo9901182
日期:1999.5.1
largely unaffected by electronic effects, which suggests that other explanations have to be sought for the electronic amplification of enantioselectivity. One possibility is a change in the diastereomeric equilibrium between the initially formed [substrate]Rh(+)[phosphinite] complexes as a function of electronic effect of the ligand. In the Rh-catalyzed hydrogenation of dimethyl itaconate, we have examined
SUBSTITUTED NUCLEOSIDES, NUCLEOTIDES AND ANALOGS THEREOF
申请人:Alios BioPharma, Inc.
公开号:US20150105341A1
公开(公告)日:2015-04-16
Disclosed herein are nucleosides, nucleotides and nucleotide analogs, methods of synthesizing the same and methods of treating diseases and/or conditions such as a Picornavirus and/or Flaviviridae infection with one or more nucleosides, nucleotides and nucleotide analogs.
Nucleoside derivatives as inhibitors of RNA-dependent RNA viral polymerase
申请人:——
公开号:US20020147160A1
公开(公告)日:2002-10-10
The present invention provides nucleoside compounds and certain derivatives thereof which are inhibitors of RNA-dependent RNA viral polymerase. These compounds are inhibitors of RNA-dependent RNA viral replication and are useful for the treatment of RNA-dependent RNA viral infection. They are particularly useful as inhibitors of hepatitis C virus (HCV) NS5B polymerase, as inhibitors of HCV replication, and/or for the treatment of hepatitis C infection. The invention also describes pharmaceutical compositions containing such nucleoside compounds alone or in combination with other agents active against RNA-dependent RNA viral infection, in particular HCV infection. Also disclosed are methods of inhibiting RNA-dependent RNA polymerase, inhibiting RNA-dependent RNA viral replication, and/or treating RNA-dependent RNA viral infection with the nucleoside compounds of the present invention.
Counteranion-controlled regioselectivity in palladium-catalyzed allylic amination of dienyl allylic carbonates
作者:Meng-Lan Shen、Pu-Sheng Wang、Liu-Zhu Gong
DOI:10.1016/j.tet.2021.131996
日期:2021.3
A regioselective Pd-catalyzed allylic amination reaction of dienyl allylic carbonates and aromatic amines has been developed by means of phosphoramidte-palladium catalysis. The regioselectivity could be altered by the counterion of the π-allylpalladium intermediate. As a result, either branched Z-dienyl allylic amines or linear conjugated allylic amines were generated in high levels of regioselectivity
Direct One-Step Fluorescent Labeling of <i>O</i>-GlcNAc-Modified Proteins in Live Cells Using Metabolic Intermediates
作者:Hong Yee Tan、Razieh Eskandari、David Shen、Yanping Zhu、Ta-Wei Liu、Lianne I. Willems、Matthew G. Alteen、Zarina Madden、David J. Vocadlo
DOI:10.1021/jacs.8b08260
日期:2018.11.14
donor sugar substrates permit direct monitoring of OGT activity on protein substrates in vitro. We show that feeding cells with a corresponding fluorescent metabolic precursor for the last step of the hexosamine biosynthetic pathway (HBP) leads to its metabolic assimilation and labeling of O-GlcNAcylated proteins within live cells. This one-step metabolic feeding strategy permits labeling of O-GlcNAcylated