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Updated: Jun 13, 2026

Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Selective one-pot multicomponent synthesis and anti-tubercular evaluation of
Ramaiyan Manikannan1, Shanmugam Muthusubramanian, Perumal Yogeeswari
1Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, India.
Abstract:
A new set of highly substituted pyridine derivatives has been synthesized by a product selective four component reaction of aryl aldehyde, malononitrile and 2-aryl/cyclohexylsulfanyl-1-aryl-1-ethanones in presence of sodium hydroxide in methyl/ethyl alcohol. Among the compounds, 4,6-bis(4-chlorophenyl)-5-[(4-chlorophenyl)sulfanyl]-2-methoxynicotinonitrile (4n) inhibited Mycobacterium tuberculosis (MTB) with minimum inhibitory concentration (MIC) of 3.1 microM and was more potent than ethambutol and pyrazinamide.
