Browsing by Subject "4-diamino-1"
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(2024)New drugs against malaria are required, as millions of people are still affected yearly by this deadly disease. The development of drug resistance to current antimalarials is an ongoing process. Membrane-bound pyrophosphatases (mPPases) are potential new drug targets against malaria and other protozoan diseases. mPPases play a crucial role in the survival of the malaria parasite, they couple the energy released from the hydrolysis of pyrophosphate into the transport of protons or ions against an electrochemical gradient. The aim of this study was to identify potential mPPase inhibitors through a docking-based virtual screen of the Tres Cantos Antimalarial Compound Set, which consists of over 13500 malaria-active compounds. The virtual screen against a Thermotoga maritima mPPase protein structure identified a 2,4-diamino-1,6-dihydrotriazine among the top-ranking scaffolds. Four compounds found among the docking results containing this scaffold were synthesised: three with a halophenyl substituent, and one with a hydroxyl substituent. The compounds in their hydrochloride salt forms were synthesised using a three-component method for the synthesis of 2,4-diamino-1,6-dihydrotriazines. The compounds were also freed from the hydrochloride salts into their corresponding molecular forms. The structural characterisation of the compounds, especially the molecular forms, presented challenges. The docking results were also searched to identify compounds containing previously identified mPPase-active substructures. From the docking results, several other interesting compounds were identified in addition to the synthesised compounds. The knowledge and results obtained from this study can be used as openings for potential future docking and synthesis projects in the development of mPPase inhibitors. The activity of the compounds synthesised in the project remains to be evaluated in subsequent investigations.
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