PTEN (phosphatase and tensin homolog deleted on chromosome 10) ist ein Mitglied der Superfamilie der ProteinTy rosin-Phosphatasen (PTPs) und einer der wichtigsten Tumorsuppressoren.[1] Zudem ist sie ein entscheidender Faktor bei regenerativen Prozessen.[2] Diese Eigenschaften hängen hauptsächlich mit der hemmenden Wirkung auf den AKTSignalweg zusammen, der durch die Lipid-Phosphataseaktivität vermittelt wird.[
Alkynes Q 0087Reactivity of 3-Silyloxy-1,4-enynes: Gold(III)-Catalyzed Regioselective Nucleophilic Substitution. -The Au(III)-catalyzed reaction of a wide range of silyloxyenynes, e.g. (I), with alcohols proceeds by highly regioselective substitution to give primary, secondary or tertiary pentenynyl ethers, e.g. (III)/(IV), in moderate to good yields as single regioisomers. The products are obtained as E/Z-mixtures in most cases. Main side products are the corresponding pentenynyl alcohols. -(HAUG, T. T.; HARSCHNECK, T.; DUSCHEK, A.; LEE, C.-U.; BINDER, J. T.; MENZ, H.; KIRSCH*, S. F.; J.
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