Synthesis of Mono and Bis[60]fullerene-Based Dicationic Peptoids
作者:Sreenu Jennepalli、Katherine A. Hammer、Thomas V. Riley、Stephen G. Pyne、Paul A. Keller
DOI:10.1002/ejoc.201403046
日期:2015.1
us to synthesise [60]fullerenyldihydropyrrole peptides, prepared from the coupling of mono- and bis[60]fullerenyldihydropyrrolecarboxylic acids 4, 5 and 41 with presynthesised peptides 13, 16, 24, 28, 29 and 46. The resulting hydrophobic scaffolded di- and tetra-cationic derivatives were tested against Staphylococcus aureus NCTC 6571 and Escherichia coli NCTC 10418. The synthesis, characterisation
A total synthesis of the cyanobacterial metabolite brunsvicamide A and the correction of its originally assigned stereochemistry are reported. Key elements were the construction of a urea building block, peptide elongation on solid phase, and on-resin cyclization of the peptide chain, with good overall yield. Detailed structural investigations uncovered that brunsvicamide A features a previously undetected D-lysine residue in its backbone, setting the foundation for all further investigations in this compound class.