Synthesis and antitubercular activity of monocyclic nitroimidazoles: Insights from econazole

Sang Ho Lee, Suhyun Kim, Min Han Yun, Yong Sup Lee, Sang Nae Cho, Taegwon Oh, Pilho Kim

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


We have designed and synthesized econazole-derived nitroimidazoles to investigate the antitubercular activity of the nitroimidazole compounds. The introduction of a nitro group at the 4-position of the imidazole on econazole abolished the antitubercular activity. However, alcoholic nitroimidazoles 4 and 6 compounds were active against Mycobacterium tuberculosis (Mtb). While the MIC value of econazole was 16 μg/mL, the MIC of 6a and 6f turned out to be 0.5 μg/mL. In particular, the activity of 6f against non-replicating Mtb was as good as PA-824, which is currently in clinical phase II studies as an antitubercular agent. Overall, alcohol compounds 4 and 6 tend to be more active than ether compounds 5 and 7.

Original languageEnglish
Pages (from-to)1515-1518
Number of pages4
JournalBioorganic and Medicinal Chemistry Letters
Issue number5
Publication statusPublished - 2011 Mar 1

Bibliographical note

Funding Information:
This research was supported in part by Korea Research Institute of Chemical Technology (KRICT) and by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) of Korea (Grant No.: K20501000001-09E0100-00110, FY 2009 ).

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry


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