Benzimidazole and imidazole inhibitors of histone deacetylases: Synthesis and biological activity
摘要:
A series of N-hydroxy-3-[3-(1-substituted-1H-benzoimidazol-2-yl)-phenyl]-acrylamides (5a-5ab) and N-hydroxy-3-[ 3-( 1,4,5-trisubstituted-1H-imidazol-2-yl)-phenyl]-acrylamides (12a-s) were designed, synthesized, and found to be nanomolar inhibitors of human histone deacetylases. Multiple compounds bearing an N1-piperidine demonstrate EC(50)s of 20-100 nM in human A549, HL60, and PC3 cells, in vitro and in vivo hyperacetylation of histones H3 and H4, and induction of p21(waf). Compound 5x displays efficacy in human tumor xenograft models. (C) 2010 Elsevier Ltd. All rights reserved.
Enantioselective CuH-Catalyzed Reductive Coupling of Aryl Alkenes and Activated Carboxylic Acids
作者:Jeffrey S. Bandar、Erhad Ascic、Stephen L. Buchwald
DOI:10.1021/jacs.6b03086
日期:2016.5.11
A new method for the enantioselective reductive coupling of aryl alkenes with activated carboxylic acid derivatives via copper hydride catalysis is described. Dual catalytic cycles are proposed, with a relatively fast enantioselective hydroacylation cycle followed by a slower diastereoselective ketone reduction cycle. Symmetrical aryl carboxyclic anhydrides provide access to enantioenriched α-substituted
Efficient rhodium(I)-catalyzed regioselective direct arylation and alkenylation of aromatic C−H bonds has been realized with aromatic carboxylic and cinnamic anhydrides as the coupling partners via decarbonylation and C−H activation under phosphine-free conditions.
Method for producing perfluoroalkane sulfonic acid esters and the salts thereof
申请人:Schmidt Michael
公开号:US20050085655A1
公开(公告)日:2005-04-21
The present invention relates to a process for the preparation of perfluoroalkanesulfonic acid esters and to the further conversion thereof into salts, and to the use of the resultant compounds in electrolytes and in batteries, capacitors, supercapacitors and electrochemical cells.
Histone deacetylase inhibitors and uses thereof are provided that have the general
Z-Q-L-M
wherein Z is a 5-membered aromatic heterocycle as shown herein, each X is independently selected from the group consisting of CR
5
and N; each Y is independently selected from the group consisting of O, S and NR
5
; R
1
, R
2
, R
3
, R
4
and R
5
are as defined herein; Q is a substituted or unsubstituted aromatic ring; M is a substituent capable of complexing with a protein metal ion; and L is a substituent comprising a chain of 1-10 atoms connecting the M substituent to the Q substituent.
Synthesis of Acylsilanes by Copper(I)-Catalyzed Addition of Silicon Nucleophiles onto Acid Derivatives
作者:Virginie Cirriez、Corentin Rasson、Olivier Riant
DOI:10.1002/adsc.201300621
日期:2013.11.11
AbstractThe transition metal‐catalyzed transfer of silicon nucleophiles onto various electrophiles has recently gained considerable attention, due to the now readily available silicon pro‐nucleophiles such as silylboronates. Our interest lies in the addition of such species to acid derivatives for the generation of acylsilanes. We report herein an efficient method to synthesize these compounds, starting from easy‐to‐form anhydrides, with very good yields.magnified image