A Genetically Encodable Ligand for Transfer Hydrogenation
作者:Clemens Mayer、Donald Hilvert
DOI:10.1002/ejoc.201300340
日期:2013.6
Simple tripeptides are shown here to be versatile ligands for iridium-catalyzed transferhydrogenations affording large acceleration effects. A water-soluble iridium complex with Gly-Gly-Phe, for example, catalyzes the reduction of diverse ketones, aldehydes, and imines by formate with turnover frequencies rivaling or outperforming those of established ligand systems. Regioselective reduction of coenzyme
widely used for Fmoc protection of aminogroups, especially amino acids, in solid phase peptide synthesis. However, it has been recognized that Fmoc-βAla-OH is formed as a by-product via the Lossen rearrangement during the reaction. Since we reconfirmed the formation of Fmoc-βAla-OH during the preparation of Fmoc-AA-OH by Fmoc-OSu, Fmoc-OPhth was designed and synthesized as a new Fmoc reagent to avoid
[EN] PEPTIDE-CONJUGATED PRODRUGS<br/>[FR] PROMÉDICAMENTS CONJUGUÉS À UN PEPTIDE
申请人:UNIV BRANDEIS
公开号:WO2021055690A1
公开(公告)日:2021-03-25
The present disclosure relates to a conjugated prodrug comprising a peptide conjugated to an antibiotic molecules via a cleavable linker and pharmaceutical compositions thereof. Also disclosed are methods of enhancing the intracellular concentration of an antibiotic agent in a bacterium and methods of treating a patient for a bacterial infection.
A One-Pot Peptide Synthesis via<u>Se</u>-phenyl Carboselenoate in Mixed Aqueous/Organic Solvent System
作者:Sunil Kumar Ghosh、Usha Singh、Mohindra S. Chadha、Vasant R. Mamdapur
DOI:10.1246/bcsj.66.1566
日期:1993.5
A one pot synthesis of peptides with free C-terminal residues has been accomplished via the active Se-phenyl carboselenoate using diphenyl diselenide, tributylphosphine, and N-methylmorpholine N-oxide in an acetonitrile– water mixed solvent system. Free amino acids and peptides have been used as the amine component without pH adjustment.
Determination of Peptide Backbone Torsion Angles Using Double-Quantum Dipolar Recoupling Solid-State NMR Spectroscopy
作者:Manish A. Mehta、Matthew T. Eddy、Seth A. McNeill、Frank D. Mills、Joanna R. Long
DOI:10.1021/ja074244w
日期:2008.2.1
Several approaches for utilizing dipolar recoupling solid-stateNMR (ssNMR) techniques to determine local structure at high resolution in peptides and proteins have been developed. However, many of these techniques measure only one torsionangle or are accurate for only certain classes of secondary structure. Additionally, the efficiency with which these dipolar recoupling experiments suppress the