221174-19-2Relevant academic research and scientific papers
HOAt.DCHA as co-coupling agent in the synthesis of peptides employing Fmoc-amino acid chlorides as coupling agents: Application to the synthesis of ss-casomorphin
Sureshbabu, Vommina V.,Chennakrishnareddy, Gundala
experimental part, p. 981 - 988 (2009/12/28)
A simple, efficient and racemization free method for the synthesis of peptides employing Fmoc-amino acid chlorides mediated by HOAtDCHA as a co-coupling agent has been described. This protocol is successfully employed in the synthesis of the pentapeptide H-Pro-Gly-VaI-GIy-VaI-OH (PGVGV), and ss-casomorphin (H-Tyr-Pro-Phe-Pro-Gly-OH) in 85 and 80% yields, respectively.
Synthesis of β-casomorphin employing Fmoc-amino acid chlorides and t-butyldimethylsilyloxy benzotriazole (TBDMS-OBt)
Tantry, Subramanyam J.,Mathad, Raveendra I.,Suresh Babu, Vommina V.
, p. 2104 - 2108 (2007/10/03)
Coupling of Fmoc-amino acid chlorides can be carried out using t-butyldimethylsilyloxy benzotriazole, the reaction being carried out in organic medium. No addition of base is required. The coupling is fast and racemization free. The workup and isolation of product are easy. Thus, the synthesis of β-casomorphin (Tyr-Pro-Phe-Pro-Gly) is accomplished.
Synthesis of peptides mediated by AgCN
Suresh Babu,Gayathri
, p. 1109 - 1113 (2007/10/03)
The acylation reactions employing Fmoc-amino acid chlorides have been carried out in the presence of AgCN. There is no addition of any base. The coupling is fast and racemization free. The work up and the isolation of products are easy. Thus the synthesis of several dipeptides, a model tetrapeptide, Leu-Ala-Gly-Val and β-casomorphin (Tyr-Pro-Phe-Pro-Gly) are accomplished.
