Total Synthesis of Pentabromo- and Pentachloropseudilin, and Synthetic Analogues-Allosteric Inhibitors of Myosin ATPase
作者:René Martin、Anne Jäger、Markus Böhl、Sabine Richter、Roman Fedorov、Dietmar J. Manstein、Herwig O. Gutzeit、Hans-Joachim Knölker
DOI:10.1002/anie.200903743
日期:2009.10.12
Stopping myo: The total syntheses of the title compounds have been achieved using a highly efficient silver(I)‐catalyzedcyclization of N‐tosyl‐homopropargylamines. The pseudilin derivatives represent a novel class of myosin inhibitors. A new allosteric binding pocket of the Dictyostelium myosin‐2 motor domain has been identified for pentabromopseudilin (1) by using an X‐ray crystal structure determination
Hg/Pt-catalyzed conversion of bromo alkynamines/alkynols to saturated and unsaturated γ-butyrolactams/lactones via intramolecular electrophilic cyclization
Convenient and general Hg(II)/Pt(IV) catalyzed syntheses of γ-butyrolactams and α,β-unsaturated γ-butyrolactones/lactams are described via intramolecular electrophilic cyclizations of bromoalkynes with tosylamino and hydroxyl tethers. The reaction features the use of wet solvents, the exclusion of any base and additive, mild conditions and practical yields. We also synthesised few chiral lactams through
Silver(I)-Catalyzed Route to Pyrroles: Synthesis of Halogenated Pseudilins as Allosteric Inhibitors for Myosin ATPase and X-ray Crystal Structures of the Protein-Inhibitor Complexes
作者:René Martin、Célia Risacher、André Barthel、Anne Jäger、Arndt W. Schmidt、Sabine Richter、Markus Böhl、Matthias Preller、Krishna Chinthalapudi、Dietmar J. Manstein、Herwig O. Gutzeit、Hans-Joachim Knölker
DOI:10.1002/ejoc.201402177
日期:2014.7
and pentachloropseudilin represent a new class of isoform-specific allosteric inhibitors of myosinATPase. Herein, we describe an application of the silver(I)-catalyzed cycloisomerization of N-(homopropargyl)toluenesulfonamides to the total syntheses of these natural products and several non-natural analogues. Moreover, we examine the inhibitiory effect of pentahalogenated pseudilins on myosin ATPase
五卤化 2-芳基吡咯型生物碱 pentabrompseudilin 和 pentachloropseudin 代表了一类新的肌球蛋白 ATP 酶的异构体特异性变构抑制剂。在此,我们描述了银 (I) 催化的 N-(高炔丙基)甲苯磺酰胺环异构化在这些天然产物和几种非天然类似物的全合成中的应用。此外,我们检查了五卤化假素对肌球蛋白 ATP 酶活性的抑制作用。