Radical Arylation of Phenols, Phenyl Ethers, and Furans
作者:Alexander Wetzel、Gerald Pratsch、Roman Kolb、Markus R. Heinrich
DOI:10.1002/chem.200902927
日期:2010.2.22
efficient, and cost‐effective new access to diversely functionalized biphenyl alcohols and ethers. Free phenolic hydroxy groups, aromatic and aliphatic amines, as well as amino acid substructures, are well tolerated. Two examples for the applicability of the methodology are the partialsynthesis of a β‐secretase inhibitor and the synthesis of a calcium‐channel modulator.
Radical arylation of tyrosine residues in peptides
作者:Stefanie K. Fehler、Gerald Pratsch、Christiane Östreicher、Michael C.D. Fürst、Monika Pischetsrieder、Markus R. Heinrich
DOI:10.1016/j.tet.2016.04.084
日期:2016.12
arylation of the phenolic side chain of tyrosine in peptides was investigated. Aryl radicals were generated from aryldiazonium salts using titanium(III) chloride as stoichiometric reductant. Due to the high selectivity with which 3-aryltyrosine derivatives were formed, this reaction type represents a new strategy for the direct functionalization of peptides.
作者:Lisa-Marie Altmann、Michael C. D. Fürst、Eva I. Gans、Viviane Zantop、Gerald Pratsch、Markus R. Heinrich
DOI:10.1021/acs.orglett.9b04237
日期:2020.1.17
Aryl radicals generated in the aqueous phase of biphasic mixtures have-regardless of a comparably low polarity- a strong preference to react with aromatic substrates in the aqueous phase and not to undergo phase-transfer into a lipophilic phase, independent from the presence of a surfactant. These results represent an important prerequisite toward future studies in biological systems, which typically
[DE] VERFAHREN ZUR ARYLIERUNG VON RINGSUBSTITUIERTEN PHENOLEN UND PHENYLETHERN<br/>[EN] METHOD FOR ARYLATING RING-SUBSTITUTED PHENOLS AND PHENYLETHERS<br/>[FR] PROCÉDÉ D'ARYLATION DE PHÉNOLS ET D'ÉTHERS PHÉNYLIQUES À NOYAU SUBSTITUÉ
申请人:UNIV MUENCHEN TECH
公开号:WO2010112211A1
公开(公告)日:2010-10-07
Der vorliegenden Erfindung beschreibt ein Verfahren zur Herstellung von kernsubstituierten Biphenylverbindungen. Das Verfahren ist kostengünstig durchführbar und verläuft mit guter Regioselektivität. Funktionalisierte Biphenyl-Verbindungen sind insbesondere als Pharmazeutika und Pflanzenschutzmittel sowie als Vorstufen solcher Wirkstoffe von großem Interesse. Das Verfahren zur Herstellung einer Verbindungen der Formel (3) ist dadurch gekennzeichnet, dass eine Verbindung der Formel (1) mit einer Verbindung der Formel (2) umgesetzt wird.
4-Biphenylalanine- and 3-Phenyltyrosine-Derived Hydroxamic Acids as Inhibitors of the JumonjiC-Domain-Containing Histone Demethylase KDM4A
作者:Ludovica Morera、Martin Roatsch、Michael C. D. Fürst、Inga Hoffmann、Johanna Senger、Mirjam Hau、Henriette Franz、Roland Schüle、Markus R. Heinrich、Manfred Jung
DOI:10.1002/cmdc.201600218
日期:2016.9.20
Overexpression of the histone lysine demethylaseKDM4A, which regulates H3K9 and H3K36 methylation states, has been related to the pathology of several human cancers. We found that a previously reported hydroxamate-based histone deacetylase (HDAC) inhibitor (SW55) was also able to weakly inhibit this demethylase with an IC50 value of 25.4 μm. Herein we report the synthesis and biochemical evaluations