Abstract
A series of twenty-two new pyrazoline derivatives was prepared from quinoline-based chalcones which in turn were synthesized by condensing formylquinolines with diverse acetylthiophenes. The titled compounds were characterized by spectroscopic techniques (NMR, IR and MS) and elemental analysis. All the compounds were screened for antileishmanial activities. Compounds 1e, 1f, 2a, 2c, 2d, 2g, 2k, and 4a were found potentially active antileishmanial agents. Bioassay results show that the type and positions of the substituents seem to be critical for their antileishmanial activities.
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Acknowledgments
The author is grateful to Higher Education Commission, Pakistan and Institute of Chemistry, University of the Punjab, Lahore, for financial support. We are also thankful to International Centre for Chemical and Biological Sciences, HEJ Research Institute of Chemistry, University of Karachi, Karachi, for spectral measurements and Dr. M. Masoom Yasinzai, Institute of Biochemistry, University of Balochistan, Quetta, Pakistan for evaluation of antileishmanial activities.
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Rizvi, S.U.F., Siddiqui, H.L., Ahmad, M.N. et al. Novel quinolyl-thienyl chalcones and their 2-pyrazoline derivatives with diverse substitution pattern as antileishmanial agents against Leishmania major . Med Chem Res 21, 1322–1333 (2012). https://doi.org/10.1007/s00044-011-9647-8
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DOI: https://doi.org/10.1007/s00044-011-9647-8