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
Preparation and Evaluation of Sterically Hindered Acridine Photocatalysts
作者:Kirill A. Zhilyaev、Dmitry L. Lipilin、Mikhail D. Kosobokov、Aida I. Samigullina、Alexander D. Dilman
DOI:10.1002/adsc.202200515
日期:2022.9.20
A practical nickel-catalyzed protocol for the synthesis of sterically hindered 9-arylacridines via Negishi type cross-coupling was developed. The method enables a convenient approach to a set of active acridine photocatalysts starting from commercially available 9-chloroacridine, inexpensive catalyst [NiCl2(Ph3P)2], and organozinc reagent with no need for additional ligands and precious metals. The
Polymer modified adducts of epoxy resins and active hydrogen containing compounds containing mesogenic moieties
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0469492A2
公开(公告)日:1992-02-05
Polymer modified adducts are prepared by (A) reacting (1) an epoxy resin having an average of more than one vicinal epoxide group with (2) a compound containing an average of two or more hydrogen atoms reactive with an epoxide group; and (B) partially vinylizing reacting the product from step (A); and (C) polymerizing the partially vinylized product from step (B) with (3) a polymerizable ethylenically unsaturated monomer; with the proviso that at least one of the components (1), (2) or (3) contain one or more mesogenic or rodlike moieties. These adducts are useful as epoxy resin curing agents.
Curable mixture of mesogenic epoxy resins and mesogenic polyamines and cured compositions
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0473935A2
公开(公告)日:1992-03-11
Compositions comprising epoxy resins containing one or more mesogenic or rodlike moieties per molecule are cured with polyamines containing one or more mesogenic or rodlike moieties per molecule. These curable compositions can be oriented by the application of an electric field or magnetic field or drawing and/or shear flow prior to and/or during curing. The resultant cured products exhibit an improvement in one or more physical and/or mechanical and/or thermal properties as compared to a like epoxy resin system which does not contain any mesogenic or rodlike moieties.