3,5-Disubstituted-thiazolidine-2,4-dione analogs as anticancer agents: Design, synthesis and biological characterization
摘要:
A series of 2,5-disubstituted-thiazolidine-2,4-dione analogs based on the newly identified lead 1, a potential anticancer agent via the inhibition of the Raf/MEK/extracellular signal regulated kinase (ERK) and phosphatidylinositol 3-kinase (PI3K)/Akt signaling cascades, were synthesized and biologically characterized. A new lead structure, 15, was identified to have improved anti-proliferative activities in U937 cells, to induce apoptosis in U937, M12 and DU145 cancer cells, and to arrest U937 cells at the S-phase. Furthermore, Western blot analysis demonstrated a correlation of the anti-proliferative activity and blockade of the Raf/MEK/ERK and PI3K/Akt signaling pathways. Collectively, these results strongly encourage further optimization of 15 as a new lead with multi-target properties to develop more potent compounds as anticancer agents. (C) 2011 Elsevier Masson SAS. All rights reserved.
The present invention provides a compound or a pharmaceutically acceptable salt thereof having an inhibitory action on the interaction between menin and an MLL protein. The compound represented by the formula (1) or a pharmaceutically acceptable salt thereof.
wherein, in the formula (1), the dotted circle, R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, Ring Q
1
, W, m and n are each as defined in the description.
Enantioselective Iridium-Catalyzed Allylation of Nitroalkanes: Entry to β-Stereogenic α-Quaternary Primary Amines
作者:Woo-Ok Jung、Binh Khanh Mai、Brian J. Spinello、Zachary J. Dubey、Seung Wook Kim、Craig E. Stivala、Jason R. Zbieg、Peng Liu、Michael J. Krische
DOI:10.1021/jacs.1c05212
日期:2021.6.30
The first systematic study of simple nitronate nucleophiles in iridium-catalyzed allylic alkylation is described. Using a tol-BINAP-modified π-allyliridium C,O-benzoate catalyst, α,α-disubstituted nitronates substitute racemic branched alkyl-substituted allylic acetates, thus providing entry to β-stereogenic α-quaternary primary amines. DFT calculations reveal early transition states that render the
The disclosure generally relates to compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds modulate the mGluR2 receptor and may be useful for the treatment of various disorders of the central nervous system.
Thermal Isomerization of (3-Butenyl)cyclopropane to Norbornane
作者:John E. Baldwin、Richard C. Burrell、Rajesh Shukla
DOI:10.1021/ol020139+
日期:2002.9.1
[reaction: see text] (3-Butenyl)cyclopropaneisomerizes thermally to norbornane and gives rise to many other products. Deuterium and carbon-13-labeled versions of (3-butenyl)cyclopropane have been prepared and isomerized, establishing that the formation of norbornane involves cleavage of the cyclopropyl C2-C3 bond.
mammalian cells, and as a consequence is an attractive target for selective inhibition. This paper describes the discovery of a novel family of HCV NS5B non-nucleoside inhibitors inspired by the bioisosterism between sulfonamide and phosphonamide. Systematic structural optimization in this new series led to the identification of IDX375, a potent non-nucleoside inhibitor that is selective for genotypes