Peptide bond formation by intermolecular aminolysis of d-glucopyranosyl esters of amino acids
作者:Štefica Horvat、Dina Keglević
DOI:10.1016/s0008-6215(00)81893-5
日期:1982.10
HO-protected and -unprotected d -glucopyranosyl esters of N -acylamino acids (Gly, Ala, Phe) with glycine and phenylalanine methyl esters in N , N -dimethylformamide at 38° and dichloromethane at 40°, respectively, led to rupture of the C-1 esterbond and formation of the corresponding N -acyldipeptide methyl ester. The relative reactivity of the C-1 esterbond toward aminolysis was greatly influenced by
Electrochemical Dimethyl
<scp>Sulfide‐Mediated</scp>
Esterification of Amino Acids
作者:Yongli Li、Huamin Wang、Heng Zhang、Aiwen Lei
DOI:10.1002/cjoc.202100395
日期:2021.11
for esterification of aminoacids has been reported. A series of aminoacids could react smoothly with alcohols, affording the desired esterification products with good efficiency. Importantly, the tolerance of peptides and gram-scale synthesis shed light on the utility of this protocol. Mechanistically, the dimethyl sulfide as a mediator plays an essential role in the transformation of amino acids
<i>p</i>-Methoxybenzyl-Radical-Promoted Chemoselective Protection of <i>sec</i>-Alkylamides
作者:JingWen Jia、Terumasa Kato、Keiji Maruoka
DOI:10.1021/acs.joc.2c02582
日期:2023.2.17
The hitherto difficult site-selective p-methoxybenzylation of secondary amides using p-methoxybenzylated alkylsilyl peroxides as a novel p-methoxybenzylation agent under coppercatalysis is reported. The reaction proceeds under mild reaction conditions in a highly chemoselective manner. This approach was successfully applied to the site-selective p-methoxybenzylation of peptides.