One‐Pot Synthesis of Diazirines and
<sup>15</sup>
N
<sub>2</sub>
‐Diazirines from Ketones, Aldehydes and Derivatives: Development and Mechanistic Insight
Broad scope one-pot diazirine synthesis strategies have been developed using two different oxidants depending on the nature of the starting material. In all cases, an inexpensive commercial solution of ammonia (NH3) in methanol (MeOH) was employed, avoiding the difficult use of liquid ammonia. With aliphatic ketones, t-butyl hypochlorite (t-BuOCl) was found to be the best oxidant whereas it is preferable
development of therapeutics. Herein, we report a strategy for the capture of protein-protein interactions using photoaffinity palladium reagents. First, the palladium-mediated reagent site specifically transferred a photoaffinity modified aryl group to the designated cysteine residue. Next, the photoaffinity group was activated by UV radiation to trap the proximal protein residue for the formation of a crosslink
A novel strategy for the dehydrogenation of the NH−NH bond is disclosed using potassium tert‐butoxide (tBuOK) in liquid ammonia (NH3) under air at room temperature. Its synthetic value is well demonstrated by the highly efficient synthesis of aromatic azo compounds (up to 100 % yield, 3 min), heterocyclic azo compounds, and dehydrazination of phenylhydrazine. The broad application of this strategy
Aliphatic diazirines have been widely used as prominent photophores for photoaffinitylabeling owing to their relatively small size which can reduce the steric effect on the natural interaction between ligands and proteins. Based on our continuous efforts to develop efficient methods for the synthesis of aliphatic diazirines, we present here a comprehensive study about base-mediated one-pot synthesis
Mapping the Protein Interaction Landscape for Fully Functionalized Small-Molecule Probes in Human Cells
作者:Tohru Kambe、Bruno E. Correia、Micah J. Niphakis、Benjamin F. Cravatt
DOI:10.1021/ja505517t
日期:2014.7.30
Phenotypicscreening provides a means to discover small molecules that perturb cell biological processes. Discerning the proteins and biochemical pathways targeted by screening hits, however, remains technically challenging. We recently described the use of small molecules bearing photoreactive groups and latent affinity handles as fully functionalized probes for integratedphenotypicscreening and