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|Title:||Synthesis of ureidopeptides using pentafluorophenyl carbamates from Nα-Fmoc-peptide acids|
|Authors:||Sureshbabu, Vommina V|
|Keywords:||Curtius rearrangement;Peptide isocyanate;Pentafluorophenyl carbamate;Peptidyl|
|Abstract:||Highly active and shelf stable pentafluoro phenol derived Fmoc-peptidyl carbamates have been synthesized from corresponding Fmoc-peptidyl isocyanates. The utility of pentafluorophenyl carbamate intermediates has been demonstrated by the synthesis of tri, penta and hexapeptidyl ureas which are obtained in good yields. All the synthesised compounds have been characterized by ¹H NMR, ¹³C NMR and mass spectroscopy. The coupling reaction using pentafluorophenyl carbamates to insert urea bond between α amino acids is fast, clean and high yielding.|
|Appears in Collections:||IJC-B Vol.47B(06) [June 2008]|
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