Medicinal Chemistry Research p. 2014 - 2022 (2013)
Update date:2022-08-03
Topics:
Karki, Subhas S.
Kulkarni, Amol A.
Kumar, Sujeet
Veliyath, Suresh Kumar
De Clercq, Erik
Balzarini, Jan
Various 5-substituted-2-(1-((diethylamino)methyl)-2-oxoindolin-3-ylidene) hydrazinecarbothioamide (4a, b) and 5-substituted-2-(1-((diethylamino)methyl)-2- oxoindolin-3-ylidene)-N-(phenyl-4-substituted)hydrazinecarbothioamide (5a-h) derivatives were synthesized. The compounds were screened for cytotoxicity against human HeLa and CEM T-lymphocytes as well as murine L1210 cells. The compounds were also screened for β-lactamase inhibitory activity, antiviral, antibacterial, and antifungal activity against various strains of microorganisms. Several of these compounds were endowed with low micromolar 50 %-cytostatic concentration (IC50) values, and some were virtually equally potent as melphalan. The most potent inhibitors against the murine leukemia cells (L1210) were also the most inhibitory against human T-lymphocyte (CEM) tumor cells. Derivative 2-(1-((diethylamino)methyl)-2-oxoindolin-3- ylidene)-N-(4-methoxyphenyl)hydrazinecarbothioamide 5c emerged as the most potent cytostatic compound among the tested compounds. Derivatives 4b, 5a, 5b, and 5d showed antiviral activity against HEL cell cultures (IC50 11-20 μM). Moderate antimicrobial activity was observed for all derivatives. The encouraging cytostatic and antiviral activity data provide an adequate rationale for further modification of these molecular scaffolds. Graphical abstract: Derivative 5c (1.9-4.4 μM) emerged as the most potent cytostatic compound among the tested compounds. Derivatives 4b, 5a, 5b, and 5d showed antiviral activity against HEL cell cultures (IC50 11-20 μM). [Figure not available: see fulltext.]
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