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  • Title: Synthesis and antimycobacterial activity of pyridylmethylsulfanyl and naphthylmethylsulfanyl derivatives of benzazoles, 1, 2, 4-triazole, and pyridine-2-carbothioamide/-2-carbonitrile.
    Author: Zahajská L, Klimesová V, Kocí J, Waisser K, Kaustová J.
    Journal: Arch Pharm (Weinheim); 2004 Oct; 337(10):549-55. PubMed ID: 15476287.
    Abstract:
    A set of four types of benzazoles, 1, 2, 4-triazole, and pyridine-2-carbonitrile/-2-carbothioamide substituted with 1-naphthylmethylsulfanyl or pyridylmethylsulfanyl was prepared to modify the structure of benzylsulfanyl derivatives of the above-mentioned heterocycles. The compounds were evaluated for in vitro antimycobacterial activity against Mycobacterium tuberculosis, M. avium, and two strains of M. kansasii. The activities were expressed as the minimum inhibitory concentration (MIC). The MIC values fall into a range of 2 to >1000 micromol/L. Introduction of a pyridyl moiety into the molecule mostly decreased the activity. A naphthyl moiety did not influence the activity in comparison with a phenyl. The most active substances were 4-(3-pyridylmethylsulfanyl)pyridine-2-carbothioamide (7b) (MIC = 2 - >62.5 micromol/L) and 4-(1-naphthylmethylsulfanyl)pyridine-2-carbothioamide (7d) (MIC = 2 - >32 micromol/L).
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