Allyl <i>m</i>-Trifluoromethyldiazirine Mephobarbital: An Unusually Potent Enantioselective and Photoreactive Barbiturate General Anesthetic
作者:Pavel Y. Savechenkov、Xi Zhang、David C. Chiara、Deirdre S. Stewart、Rile Ge、Xiaojuan Zhou、Douglas E. Raines、Jonathan B. Cohen、Stuart A. Forman、Keith W. Miller、Karol S. Bruzik
DOI:10.1021/jm300631e
日期:2012.7.26
containing derivative of general anesthetic mephobarbital, separated the racemic mixture into enantiomers by chiral chromatography, and determined the configuration of the (+)-enantiomer as S by X-ray crystallography. Additionally, we obtained the 3H-labeled ligand with high specific radioactivity. R-(−)-14 is an order of magnitude more potent than the most potent clinically used barbiturate, thiopental
Synthesis of a new Photo-Cross-Linking Nucleoside Analogue Containing an Aryl(Trifluoromethyl)Diazirine Group: Application for<i>Eco</i>RII and<i>Mva</i>I Restriction-Modification Enzymes
作者:Andrey N. Topin、Oxana M. Gritsenko、Maxim G. Brevnov、Elisaveta S. Gromova、Galina A. Korshunova
DOI:10.1080/07328319808004229
日期:1998.7
A new photo-cross-linking dU analog, 5-[4-(3-(trifluoromethyl)-3H-diazirin-3-yl)phenyl]-2'-deoxyuridine, was synthesized and incorporated into the recognition site of EcoRII and MvaI restriction-modification enzymes. The resulting base-modified 14-mer substrate was tested for cross-linking to these enzymes. Cross-linking is effected by irradiation of the enzyme-substrate complexes at 366 nm.
Photoaffinity palladium reagents for capture of protein–protein interactions
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
Stereospecific Synthesis of a Carbene-Generating Angiotensin II Analogue for Comparative Photoaffinity Labeling: Improved Incorporation and Absence of Methionine Selectivity
作者:Dany Fillion、Maud Deraët、Brian J. Holleran、Emanuel Escher
DOI:10.1021/jm050958a
日期:2006.4.1
A stereospecific convergent synthesis of N-[(9-fluorenyl)methoxycarbonyl]-p-[3-(trifluoromethyl)-3H-diazirin-3-yl]-l-pheny lalanine (Fmoc-12, Fmoc-Tdf) and its incorporation into the C-terminal position of the angiotensin II (AngII) peptide to form (125)I[Sar(1),Tdf(8)]AngII ((125)I-13) is presented. This amino acid photoprobe is a highly reactive carbene-generating diazirine phenylalanine derivative