1395409-38-7Relevant articles and documents
Synthesis and biological evaluation of flexible and conformationally constrained LpxC inhibitors
L?ppenberg, Marius,Müller, Hannes,Pulina, Carla,Oddo, Alberto,Teese, Mark,Jose, Joachim,Holl, Ralph
, p. 6056 - 6070 (2013/09/12)
Inhibitors of the UDP-3-O-[(R)-3-hydroxymyristoyl]-N-acetylglucosamine deacetylase (LpxC) represent promising candidates for the development of antibiotics possessing a so far unexploited mechanism of action. In a chiral pool synthesis, starting from the d-mannose derived mannonolactone 4, conformationally constrained C-glycosidic as well as open chained hydroxamic acids with a defined stereochemistry were prepared. Diversity was introduced by performing C-C coupling reactions like the Sonogashira and Suzuki cross-coupling reactions. The biological evaluation of the synthesized compounds revealed that in the case of the C-glycosides a long, linear and rigid hydrophobic side chain is required for antibiotic activity against E. coli. The open chain derivatives show higher biological activity than the conformationally constrained C-glycosides. The morpholinomethyl substituted open chain derivative 43, being the most potent compound presented in this paper, inhibits LpxC with a K i value of 0.35 μM and represents a promising lead structure. The Royal Society of Chemistry.