Synthesis and biological evaluation of potential threonine synthase inhibitors: Rhizocticin A and Plumbemycin A
作者:Mathias Gahungu、Anthony Arguelles-Arias、Patrick Fickers、Astrid Zervosen、Bernard Joris、Christian Damblon、André Luxen
DOI:10.1016/j.bmc.2013.06.064
日期:2013.9
Rhizocticins and Plumbemycins are natural phosphonate antibiotics produced by the bacterial strains Bacillus subtilis ATCC 6633 and Streptomyces plumbeus, respectively. Up to now, these potential threonine synthase inhibitors have only been synthesized under enzymatic catalysis. Here we report the chemical stereoselective synthesis of the non-proteinogenic (S,Z)-2-amino-5-phosphonopent-3-enoic acid [(S,Z)-APPA] and its use for the synthesis of Rhizocticin A and Plumbemycin A. In this work, (S,Z)-APPA was synthesized via the Still-Gennari olefination starting from Garner's aldehyde. The Michaelis-Arbuzov reaction was used to form the phosphorus-carbon bond. Oligopeptides were prepared using liquid phase peptide synthesis (LPPS) and were tested against selected bacteria and fungi. (C) 2013 Elsevier Ltd. All rights reserved.