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  • Title: 1-Substituted carbamoyl and thiocarbamoyl-4,5-dihydro-1H-pyrazoles as possible cytotoxic and antimicrobial agents.
    Author: Khan KA, Faidallah HM.
    Journal: J Enzyme Inhib Med Chem; 2016 Aug; 31(4):619-27. PubMed ID: 26114308.
    Abstract:
    Two series of 1-substituted carbamoyl and thiocarbomoyl derivatives were prepared by either treating the corresponding pyrazole with the appropriate isocyanate and isothiocyanate respectively, or alternatively by condensing the appropriate diketone with the proper substituted semicarbazide or thiosemicarbazide. The structures of the prepared compounds were fully determined by analytical and spectral methods. Preliminary biological screening of the prepared compounds revealed significant antibacterial and cytotoxic activities for some compounds. Compounds 4a2 and 4a3 were found to be the most active against the human colon carcinoma HT29 (11.8 and 7.5 μg/mL, respectively) and human breast cancer MCF 7 (3.4 and 2.6 μg/mL, respectively) cell lines. The structure-activity relationship (SAR) and in silico drug relevant properties (HBD, HBA, tPSA, cLog P, molecular weight, % ABS, drug-likeness and drug score) further confirmed that the compounds are potential lead compounds for future drug discovery study.
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