Piperazine and DBU: a safer alternative for rapid and efficient Fmoc deprotection in solid phase peptide synthesis
作者:Krittika Ralhan、V. Guru KrishnaKumar、Sharad Gupta
DOI:10.1039/c5ra23441g
日期:——
We demonstrate PolyAla synthesis using 5% piperazine + 2% DBU, which significantly reduces deletion products arising due to incomplete Fmoc-deprotection and can be used for deletion-free assembly of aggregation prone difficult peptides.
Evaluation of acid‐labile
<scp>
<i>S</i>
</scp>
‐protecting groups to prevent Cys racemization in Fmoc solid‐phase peptide synthesis
作者:Hajime Hibino、Yasuyoshi Miki、Yuji Nishiuchi
DOI:10.1002/psc.2585
日期:2014.1
also the former method cannot reduce racemization of Cys(Trt) to an acceptable level (<1.0%) even when the preactivation procedure is omitted. Here, the 4,4′‐dimethoxydiphenylmethyl and 4‐methoxybenzyloxymethyl groups were demonstrated to be acid‐labileS‐protectinggroups that can suppress racemization of Cys to an acceptable level (<1.0%) when the respective Fmoc derivatives are incorporated via the