One-pot synthesis of 4,4-difluoro-3-oxo-2-(triphenylphosphoranylidene)-δ-lactones by Reformatsky reaction
摘要:
In the presence of zinc and a catalytic amount of cuprous chloride, ethyl 4-bromo-4,4-difluoro-3-oxo-2-(triphenylphosphoranylidene)butanoate 1 reacted with carbonyl compounds to give the gem-difluoromethylenated 2-(triphenylphosphoranylidene)-delta-lactones 4 in moderate to high yields. (C) 2009 Elsevier B.V. All rights reserved.
Synthesis and substitution reactions of β-alkoxyvinyl bromodifluoromethyl ketones
摘要:
beta-Alkoxyvinyl bromodifluoromethyl ketones 1a, 1b and 1c were synthesized by the reaction of bromodifluoroacetic anhydride with appropriate vinyl ethers in high yields. The acyclic enone 1a reacted with amines to give the corresponding beta-aminovinyl bromodifluoromethyl ketones 2 in good yields. The reaction of la with electrophilic reagent ICI yielded alpha-iodoenone 4. The substitution reaction of the cyclic enones 1b and 1c with thio-nucleophiles gave the corresponding difluoromethylene thioethers 6. The three-component reactions of 2 with primary amines and formaldehyde gave multifunctional 1,2,3,4-tetrahydropyrimidine 3 in moderate yields. (c) 2008 Elsevier B.V. All rights reserved.
[EN] NOVEL HETEROCYCLIC COMPOUNDS AND THEIR USE IN PREVENTING OR TREATING BACTERIAL INFECTIONS<br/>[FR] NOUVEAUX COMPOSÉS HÉTÉROCYCLIQUES ET LEUR UTILISATION POUR PRÉVENIR OU TRAITER DES INFECTIONS BACTÉRIENNES
申请人:MUTABILIS
公开号:WO2018141991A1
公开(公告)日:2018-08-09
The present invention relates to compound of formula (I) and their use for treating bacterial infections.
本发明涉及化合物的公式(I)以及它们用于治疗细菌感染的用途。
Photoredox Activation of Anhydrides for the Solvent‐Controlled Switchable Synthesis of
<i>gem</i>
‐Difluoro Compounds**
Electron-transfer photocatalysis triggers selective fragmentation of a C−Cl bond of chlorodifloroacetic anhydride (CDFAA) generating a gem-difluoroalkyl radical intermediate. In the presence of olefin and under solvent-controlled reaction conditions, a notable synthetic divergence is achieved to access a wide array of gem-difluoro compounds.
Screening of a Halogen-Enriched Fragment Library Leads to Unconventional Binding Modes
作者:Marcel Dammann、Jason Stahlecker、Markus O. Zimmermann、Theresa Klett、Kilian Rotzinger、Markus Kramer、Murray Coles、Thilo Stehle、Frank M. Boeckler
DOI:10.1021/acs.jmedchem.2c00951
日期:2022.11.10
verified micromolar binding fragments via isothermaltitrationcalorimetry (ITC). The crystal structure of one fragment revealed a noncanonical binding mode, despite the fragment’s classical hinge binding motif. In addition, the fragment occupies a secondary binding site. Both binding modes feature a halogen bond, which we evaluated by abinitiocalculations. Structure–affinity relationship (SAR) from
[EN] RADIOLABELED COMPOSITIONS AND METHODS OF USE THEREOF<br/>[FR] COMPOSITIONS RADIOMARQUÉES ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV NEW YORK STATE RES FOUND
公开号:WO2022174193A1
公开(公告)日:2022-08-18
The present invention provides a compound which is a class-lla histone deacetylases (HDAC) inhibitor, a process of making the compound, a composition containing the compound and radiolabeling the compound for use in positron emission tomography (PET) imaging, said compound having the structure:
Synthesis of Amino Acids Bearing Halodifluoromethyl Moieties and Their Application to p53-Derived Peptides Binding to Mdm2/Mdm4
作者:Sebastian Vaas、Markus O Zimmermann、Theresa Klett、Frank M Boeckler
DOI:10.2147/dddt.s406703
日期:——
backbone, and incorporation of unnatural amino acids. One approach previously established, is the use of halogenated aromatic amino acids. In principle, they are thereby enabled to form halogen bonds (XB). In this study, we focus on the -R-CF2X moiety (R = O, NHCO; X = Cl, Br) as an uncommon halogenbonddonor. These groups enable more spatial variability in protein–protein interactions. The chosen approach