A simple and efficient method is described for the synthesis of thio-, dithio- and selenothiocarbamate-linked peptidomimetics. The nucleophilic addition of enantiopure N I±-protected amino alkyl thiols to isocyanates, isothiocyanates or isoselenocyanates obtained from amino acid esters proceeds smoothly in the presence of catalytic amount of DMAP. The protocol was further extended for the synthesis
An efficient one-pot access to trithiocarbonate-tethered peptidomimetics
作者:N. Narendra、H.S. Lalithamba、Vommina V. Sureshbabu
DOI:10.1016/j.tetlet.2010.09.075
日期:2010.11
A simple protocol for the synthesis of a new class of trithiocarbonate-linked peptidomimetics and neoglycosylated amino acids is described. N-Protected amino alkyl thiols were treated with CS2 in the presence of triethylamine (TEA) to generate trithiocarbonate salt, which upon reaction with appropriate halides afforded dipeptidomimetics in good yields. Further, the procedure was also extended for the synthesis of N,N'-orthogonally protected trithiocarbonate-linked dipeptidomimetics. (C) 2010 Elsevier Ltd. All rights reserved.