European Journal of Medicinal Chemistry p. 96 - 102 (2015)
Update date:2022-08-28
Topics:
Jarrad, Angie M.
Karoli, Tomislav
Debnath, Anjan
Tay, Chin Yen
Huang, Johnny X.
Kaeslin, Geraldine
Elliott, Alysha G.
Miyamoto, Yukiko
Ramu, Soumya
Kavanagh, Angela M.
Zuegg, Johannes
Eckmann, Lars
Blaskovich, Mark A.T.
Cooper, Matthew A.
Abstract Metronidazole has been used clinically for over 50 years as an antiparasitic and broad-spectrum antibacterial agent effective against anaerobic bacteria. However resistance to metronidazole in parasites and bacteria has been reported, and improved second-generation metronidazole analogues are needed. The copper catalysed Huigsen azide-alkyne 1,3-dipolar cycloaddition offers a way to efficiently assemble new libraries of metronidazole analogues. Several new metronidazole-triazole conjugates (Mtz-triazoles) have been identified with excellent broad spectrum antimicrobial and antiparasitic activity targeting Clostridium difficile, Entamoeba histolytica and Giardia lamblia. Cross resistance to metronidazole was observed against stable metronidazole resistant C. difficile and G. lamblia strains. However for the most potent Mtz-triazoles, the activity remained in a therapeutically relevant window.
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