Journal
FITOTERAPIA
Volume 99, Issue -, Pages 300-306Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fitote.2014.10.005
Keywords
Oridonin; Tuberculosis; Antimycobacterial activity; Enmein-type; Natural product
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Funding
- National Natural Science Foundation [30973610, 81373280]
- Young Teachers Scientific Research Fund Project of Shenyang Pharmaceutical University [QNJJ 2013501]
- Project Program of State Key Laboratory of Natural Medicines, China Pharmaceutical University [SKLNMZZCX201404]
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A series of enmein-type derivatives were synthesized and assayed for their antimycobacterial effects. The structures of the synthesized compounds were established by H-1 NMR, C-13 NMR and mass spectral analysis. All the compounds were screened for their antimycobacterial properties against Mycobacterium phlei, Mycobacterium smegmatis and Mycobacterium marinum. Compounds 2, 6g and 6i were found to exhibit potent antimycobacterial activity against M. phlei at a concentration of 0.5 mu g/mL, which was comparable to that of positive drug streptomycin. Furthermore, five compounds were tested against Mycobacterium tuberculosis H(37)Rv based on the promising preliminary screening results. Among them, compound 10 showed potent activity with IC50 value of I 7.1 mu g/mL against M. tuberculosis H37Rv strain. Thus, compound 10 could emerge as a promising lead for further research work. (C) 2014 Elsevier B.V. All rights reserved.
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