Multicomponent Synthesis of Peptide-Sugar Conjugates Incorporating Hexafluorovaline
作者:Maria Cristina Bellucci、Alessandro Volonterio
DOI:10.1002/adsc.201000489
日期:2010.11.2
lcrotonic acid. The reaction has been exploited for the synthesis of a library of structurally diverse peptide-sugar conjugates incorporating hexafluorovaline through a four-component, one-pot sequential process by generating the carbodiimides in situ from easily accessible sugar containing azides and commercial available isocyanates through the Staudinger (aza-Wittig) reaction.
Herein we report a novel, one-pot, three-component process for the synthesis of peptide–urea conjugates incorporating a hexafluorovaline or an aspartic acid alkyl ester residue under very mild conditions and high yields. The reaction has been exploited for the synthesis of a wide array of structurally diverse peptide–sugar conjugates through a regiospecific four-component, one-pot sequential domino process