Journal
BIOORGANIC & MEDICINAL CHEMISTRY
Volume 14, Issue 7, Pages 2290-2299Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmc.2005.11.017
Keywords
thiazolidinone; crystal structure; venlafaxine analogs; antimicrobials
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A one-pot, three-component, microwave irradiated and conventional solution-phase synthesis of bioactive venlafaxine analogs such as 2,3-disubstituted-1,3-thiazolidin-4-ones 3a-j under mild conditions and their characterization are reported. The novel thiazolidin-4-ones, 3-(2-(1-hydroxycyclohexyl)-2-(4-methoxyphenyl)ethyl)-2-phenyl-thiazolidin-4-one 3a, 2-(2,6-difluorophenyl)-3-(2-(1-hydroxycyclohexyl)-2-(4-methoxyphenyl)ethyl)thiazolidin-4-one 3c, and 2-(furan-2-yl)-3-(2-(1-hydroxycyclohexyl)-2(4-methoxyphenyl)ethyl)thiazolidin-4-one 3i, were characterized by the single crystal X-ray diffraction method. The cyclohexane ring of all the three molecules is in chair conformation. All the synthesized compounds were screened for their efficacy as antimicrobials in vitro by the disk diffusion and microdilution method against pathogenic strains such as Bacillus subtilis, Escherichia coli, Pseudomonas fluorescens, Xanthomonas campestris pus, Xanthomonas oryzae, Aspergillus niger, Aspergillus flavus, Fusarium oxysporum, Trichoderma species, and Fusarium monalifiorme species. Among these compounds 3e, 3j 3g, 3d, and 3e showed potent antimicrobial activity, when compared to standard drugs. (c) 2005 Elsevier Ltd. All rights reserved.
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