134296-07-4Relevant articles and documents
Endeavors towards transformation of M. tuberculosis thymidylate kinase (MtbTMPK) inhibitors into potential antimycobacterial agents
Jian, Yanlin,Merceron, Romain,De Munck, Steven,Forbes, He Eun,Hulpia, Fabian,Risseeuw, Martijn D.P.,Van Hecke, Kristof,Savvides, Savvas N.,Munier-Lehmann, Hélène,Boshoff, Helena.I.M.,Van Calenbergh, Serge
, (2020)
As the last enzyme in nucleotide synthesis as precursors for DNA replication, thymidylate kinase of M. tuberculosis (MtbTMPK) attracts significant interest as a target in the discovery of new anti-tuberculosis agents. Earlier, we discovered potent MtbTMPK inhibitors, but these generally suffered from poor antimycobacterial activity, which we hypothesize is due to poor bacterial uptake. To address this, we herein describe our efforts to equip previously reported MtbTMPK inhibitors with targeting moieties to increase the whole cell activity of the hybrid analogues. Introduction of a simplified Fe-chelating siderophore motif gave rise to analogue 17 that combined favorable enzyme inhibitory activity with significant activity against M. tuberculosis (MIC of 12.5 μM). Conjugation of MtbTMPK inhibitors with an imidazo[1,2-a]pyridine or 3,5-dinitrobenzamide scaffold afforded analogues 26, 27 and 28, with moderate MtbTMPK enzyme inhibitory potency, but sub-micromolar activity against mycobacteria without significant cytotoxicity. These results indicate that conjugation with structural motifs known to favor mycobacterial uptake may be a valid approach for discovering new antimycobacterial agents.
Convenient and rapid strategies towards 6-(hetero)aryl pyridylmethylamines: First catalytic issues
Requet, Alexandre,Yalgin, Hasret,Prim, Damien
supporting information, p. 1378 - 1382 (2015/03/04)
The convenient preparation of new pyridylmethylamines is described using a short two step sequence. The first step involved the straightforward microwave-assisted construction of 6-aryl and 6-heteroaryl pyridine scaffolds bearing carboxaldehyde and nitrile fragments. The pendant arm comprising a second nitrogen atom by mean of amine and oxazoline moieties is installed in the second step. Finally, a first entry towards catalytic activity is given. In this context, modification of the ligand pattern and steric crowding around the central pyridine ring is examined and led to modest to fair ee's in the construction of binaphthyl substrates.