Biomimetic synthesis, antibacterial activity and structure–activity properties of the pyroglutamate core of oxazolomycin
作者:Plamen Angelov、Yui Kwan Sonia Chau、Paul J. Fryer、Mark G. Moloney、Amber L. Thompson、Paul C. Trippier
DOI:10.1039/c2ob00042c
日期:——
Biomimetic intramolecular aldol reactions on oxazolidine templates derived from serine may be used to generate densely functionalised pyroglutamates, which are simpler mimics of the right hand side of oxazolomycin. Some of the compounds from this sequence exhibit in vivo activity against S. aureus and E. coli, suggesting that pyroglutamate scaffolds may be useful templates for the development of novel antibacterials, and cheminformatic analysis has been used to provide some structureâactivity data.
Synthesis and bioactivity of fused- and spiro-β-lactone-lactam systems
作者:Laia Josa-Culleré、Christopher Towers、Frances Willenbrock、Valentine M. Macaulay、Kirsten E. Christensen、Mark G. Moloney
DOI:10.1039/c7ob01148b
日期:——
Fused systems are formed preferentially, under standard conditions, but spiro systems are accessible only when the formation of the fused system is blocked and with careful optimisation of reaction conditions.