Mmm, a reaction sandwich…︁ Using an immunoassay‐based technique able to monitor any kind of cross‐coupling reaction, a systematic and rapid evaluation of a large panel of random reactions was carried out. This approach led to the discovery of two new copper‐promoted reactions: a desulfurization reaction of thioureas leading to isoureas and a cyclization reaction leading to thiazole derivatives from
A Continuous, Fluorogenic Sirtuin 2 Deacylase Assay: Substrate Screening and Inhibitor Evaluation
作者:Iacopo Galleano、Matthias Schiedel、Manfred Jung、Andreas S. Madsen、Christian A. Olsen
DOI:10.1021/acs.jmedchem.5b01532
日期:2016.2.11
synthesized fluorogenic substrates enabling enzyme-economical evaluation of SIRT2inhibitors in a continuous assay format as well as evaluation of the properties of SIRT2 as a long chain deacylase enzyme. Novel enzymatic activities of SIRT2 were thus established in vitro, which warrant further investigation, and two known inhibitors, suramin and SirReal2, were profiled against substrates containing ε-N-acyllysine
amphiphilic natural product with a trisubstituted tetramic acid moiety, was prepared in four steps from D-leucine in an overall yield of 24%. The chiral heterocyclic portion of 1 was synthesized by Dieckmann cyclization of ethyl N-(acetoacetyl)leucinate (7), and the resulting pyrrole derivative 8 was N-acylated with (E)-dec-2-enoyl chloride in the presence of BuLi at − 70° (Scheme 2). This new procedure
The invention relates to an assay for identifying an agent that modulates the interaction of a mRNA with a target protein, e.g. HuR and to organic compounds of formula I
wherein R
1
, R
2
and R
3
are as defined above and their use, e.g. as an inhibitor on the complex-formation of an ARE-containing mRNA and a target protein.
The present invention relates to novel derivatives of 18β-glycyrrhetinic acid and methods of synthesising the derivatives. Also included within the scope of the present invention are pharmaceutical compositions comprising the derivatives of the present invention and medical uses of the derivatives, including their use in inhibiting enzymes such as retinol dehydrogenases. The present invention also relates to methods of treating diseases, such as hyperproliferative diseases, neoplasms, cancers and photoageing.