Inhibition of Human DHODH by 4-Hydroxycoumarins, Fenamic Acids, and<i>N</i>-(Alkylcarbonyl)anthranilic Acids Identified by Structure-Guided Fragment Selection
作者:Ingela Fritzson、Bo Svensson、Salam Al-Karadaghi、Björn Walse、Ulf Wellmar、Ulf J. Nilsson、Dorthe da Graça Thrige、Stig Jönsson
DOI:10.1002/cmdc.200900454
日期:2010.4.6
structure‐guided selection of fragments was used to identify three unexplored classes of humanDHODH inhibitor compounds: 4‐hydroxycoumarins, fenamicacids, and N‐(alkylcarbonyl)anthranilicacids. Structure‐guided selection of fragments targeting the inner subsite of the DHODH ubiquinone binding site made these findings possible with screening of fewer than 300 fragments in a DHODH assay. Fragments from the
CuI/<scp>l</scp>-Proline-Catalyzed Coupling Reactions of Aryl Halides with Activated Methylene Compounds
作者:Xiaoan Xie、Guorong Cai、Dawei Ma
DOI:10.1021/ol0518838
日期:2005.10.1
[reaction: see text] The arylation of ethyl acetoacetate, ethyl benzoyl acetate, and diethyl malonate under the catalysis of CuI/L-proline in DMSO proceeds smoothly at 40-50 degrees C in the presence of Cs2CO3 to provide the 2-aryl-1,3-dicarbonyl compounds in good yields. Both aryl iodides and aryl bromides are compatible with these reaction conditions.
Palladium-Catalyzed Arylation of Malonates and Cyanoesters Using Sterically Hindered Trialkyl- and Ferrocenyldialkylphosphine Ligands
作者:Neil A. Beare、John F. Hartwig
DOI:10.1021/jo016226h
日期:2002.1.1
diethyl malonate, di-tert-butyl malonate, diethyl fluoromalonate, ethyl cyanoacetate, and ethyl phenylcyanoacetate. Although alkyl malonates and ethyl alkylcyanoacetates did not react with aryl halides using these catalysts, the same products were formed conveniently in one pot from diethylmalonate by cross-coupling of an aryl halide in the presence of excess base and subsequent alkylation.
Radical Addition Enables 1,2‐Aryl Migration from a Vinyl‐Substituted All‐Carbon Quaternary Center
作者:Zexian Li、Minyan Wang、Zhuangzhi Shi
DOI:10.1002/anie.202010839
日期:2021.1.4
An efficient method for photocatalytic perfluoroalkylation of vinyl‐substituted all‐carbon quaternary centers involving 1,2‐aryl migration has been developed. The rearrangement reactions use fac‐Ir(ppy)3, visible light and commercially available fluoroalkyl halides and can generate valuable multisubstituted perfluoroalkylated compounds in a single step that would be challenging to prepare by other methods
Barbituric acid derivatives with antimetastatic and antitumor activity
申请人:Roche Diagnostics GmbH
公开号:US06335332B1
公开(公告)日:2002-01-01
The invention is directed to barbituric acid derivatives having inhibitory activity for matrix maetalloproteases comprised of formula (I):
pharmaceutical compositions thereof, processes for preparing the derivatives, and methods for treating diseases associated with elevated or uncontrolled levels of matrix metalloprotease activity, e.g., cancer, specifically tumor progression and tumor metastasis, inflammation, or as a method of contraception.