Publications by authors named "Meshal A Almehmadi"

Recently, the interest in targeting metalloenzymes is obviously growing for halting various tumor progression events and surmounting the resistance due to routine chemotherapy regimen. In this regard, attention to MMP-2 and CA II has been drawn as validated druggable anticancer targets that share vital signaling pathways. The vast majority of MMP and CA inhibitors are designed to function as directed single-target agents.

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A series of benzothiazole/isatin linked to 1,2,3-triazole moiety and terminal sulpha drugs 5a-e and 6a-e were synthesized and evaluated for cytotoxic activity against a panel of cancer cell lines. The novel compounds showed variable IC range of activity and some of them were potent compared to reference drug. The promising compounds were subjected as postulated the mimicry proposal for quinazoline-based EGFR inhibitors for their inhibitory profile against EGFR TK enzyme.

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Background: Nitrogen heterocyclic rings and sulfonamides have attracted attention of several researchers.

Results: A series of regioselective imidazole-based mono- and bis-1,4-disubstituted-1,2,3-triazole-sulfonamide conjugates 4a-f and 6a-f were designed and synthesized. The first step in the synthesis was a regioselective propargylation in the presence of the appropriate basic catalyst (EtN and/or KCO) to afford the corresponding mono-2 and bis-propargylated imidazoles 5.

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In the cation of the title mol-ecular salt, CHNO·Br, the pyridinium and phenyl rings are inclined to one another by 11.80 (8)°. In the crystal, the Br anion is linked to the cation by a C-H⋯Br hydrogen bond.

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