Peptide Bond Formation Mediated by 4,5-Dimethoxy-2-mercaptobenzylamine after Periodate Oxidation of the N-Terminal Serine Residue
作者:Toru Kawakami、Kenichi Akaji、Saburo Aimoto
DOI:10.1021/ol0157813
日期:2001.5.1
[reaction in text] A thiol linker-attached peptide was prepared from a nonprotected peptide via an N(alpha)()-alpha-oxoacyl peptide. Selective oxidation of the N-terminal serine with sodium periodate gave the N(alpha)-glyoxyloyl peptide, reductiveamination of which with 4,5-dimethoxy-2-(triphenylmethylthio)benzylamine gave an N(alpha)-4,5-dimethoxy-2-mercaptobenzyl glycyl peptide after removal of
Controlling Intracellular Macrocyclization for the Imaging of Protease Activity
作者:Deju Ye、Gaolin Liang、Man Lung Ma、Jianghong Rao
DOI:10.1002/anie.201006140
日期:2011.3.1
ground: An intramolecular macrocyclization reaction took place highly efficiently in live cells under the control of a specific enzyme and reduction by glutathione (GSH; see picture). Macrocyclic products (represented as blue rings) synthesized in cells self‐assembled into nanoparticles aggregated and retained at the site near the enzyme location to report local proteolytic activity in live cells.
Synthesis and application of an auxiliary group for chemical ligation at the X-gly site
作者:Jean Vizzavona、Fritz Dick、Thomas Vorherr
DOI:10.1016/s0960-894x(02)00319-0
日期:2002.8
into peptides to study the reaction with thiobenzyl-activated derivatives. The target peptides have been obtained by standard chemical ligation reaction, followed by TMSBr-assisted cleavage to remove the auxiliary group. Prior to Dmmb removal, under acidic conditions an unexpected rearrangement was observed and evidence for a mechanism is provided.