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Through catalyzing the transfer of methyl groups onto the guanidinium of arginine, protein arginine methyltransferase 5 (PRMT5) was essential to the cell growth of cancer cells. By utilizing a scaffold hopping strategy, a novel series of 3,4-dihydroisoquinolin-1()-one derivatives were designed and synthesized. Through a systematic SAR study, demonstrated excellent PRMT5 inhibitory activity, potent antiproliferative activity against Z-138, favorable pharmacokinetic profiles, and low hERG toxicity.

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The first FDA approved, MDR-TB inhibitory drug bedaquiline (BDQ), entraps the c-ring of the proton-translocating F region of enzyme ATP synthase of , thus obstructing successive ATP production. Present-day BDQ-resistance has been associated with cardiotoxicity and mutation(s) in the atpE gene encoding the c subunit of ATP synthase (ATPc) generating five distinct ATPc mutants: Ala63→Pro, Ile66→Met, Asp28→Gly, Asp28→Val and Glu61→Asp. We created three discrete libraries, first by repurposing bedaquiline via scaffold hopping approach, second one having natural plant compounds and the third being experimentally derived analogues of BDQ to identify one drug candidate that can inhibit ATPc activity more efficiently with less toxic properties.

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Discovery of 3-amide-pyrimidine-based derivatives as potential fms-like tyrosine receptor kinase 3 (FLT3) inhibitors for treating acute myelogenous leukemia.

Bioorg Med Chem Lett

December 2024

Department of Medicinal Chemistry and Pharmaceutical Analysis, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi 710032, China. Electronic address:

FLT3-ITD and TKD mutants play a central role in acute myeloid leukemia (AML), making FLT3 an attractive target for AML treatment. To discover next-generation FLT3 inhibitors and gather additional structure-activity relationship (SAR) information, we performed structural modifications of G-749 (denfivontinib) utilizing structure simplification and scaffold hopping strategies. Among these derivatives, MY-10 exhibited the most potent and selective inhibition of MV4-11 cell proliferation, demonstrating potent inhibitory activity against FLT3-ITD (IC = 6.

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Citrus canker, caused by subsp. (), poses a significant threat to citrus production worldwide. To develop effective and eco-friendly antibacterial agents, we designed and synthesized phenyl-hydrazonomalononitrile derivatives using a scaffold-hopping strategy.

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Development and characterization of pyridyl carboxamides as potent and highly selective Na1.8 inhibitors.

Bioorg Med Chem Lett

December 2024

Lieber Institute for Brain Development, 855 N. Wolfe Street, Baltimore, MD 21205, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA. Electronic address:

The voltage-gated sodium channel Na1.8 (SCN10A) has strong genetic and pharmacological validation as a potential target for treating acute and chronic pain. While several different chemotypes have been advanced as selective inhibitors, a quinoxaline carboxamide core structure was identified as a particularly attractive core structure due to very high sodium channel subtype selectivity.

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