Microwave-assisted chemical ligation of S-acyl peptides containing non-terminal cysteine residues
作者:Finn K. Hansen、Khanh Ha、Ekaterina Todadze、Aaron Lillicotch、Alexander Frey、Alan R. Katritzky
DOI:10.1039/c1ob05740e
日期:——
cysteine residues has been developed and the chemical long-range ligation of these S-acyl peptidesvia 5-, 8-, 11- and 14-membered cyclictransitionstates has been investigated. Our results include the first examples of successful isopeptideligations starting from S-acyl peptides containing non-terminal cysteine residues and indicate that the cyclictransitionstates studied in this present paper are decreasingly
Raydnov, M. G.; Klimenko, L. V.; Mitin, Yu. V., Russian Journal of Bioorganic Chemistry, 1999, vol. 25, # 5, p. 283 - 287
作者:Raydnov, M. G.、Klimenko, L. V.、Mitin, Yu. V.
DOI:——
日期:——
Synthetic O-glycopeptides as model substrates for glycosyltransferases
作者:Michael Schultz、Horst Kunz
DOI:10.1016/s0957-4166(00)80230-x
日期:1993.6
A new approach to O-glycopeptides of the glucosamine type is described. N-Urethane protected, peracetylated glucosamine is converted into its 1-thio (1-bromo) derivative and used for glycosylation of a variety of protected serine or threonine derivatives as acceptors. The urethane group is easily exchanged for the natural N-acetyl moiety and O-deacetylation is achieved with hydrazine/methanol. The resulting O-GlcNAc derivatives are subjected to an enzymatic galactosylation procedure using beta-1,4-galactosyluwsferase (EC 2.4.1.22) to furnish O-glycopeptides of the neolactosamine type.