- Achiral Derivatives of Hydroxamate AR-42 Potently Inhibit Class i HDAC Enzymes and Cancer Cell Proliferation
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AR-42 is an orally active inhibitor of histone deacetylases (HDACs) in clinical trials for multiple myeloma, leukemia, and lymphoma. It has few hydrogen bond donors and acceptors but is a chiral 2-arylbutyrate and potentially prone to racemization. We report achiral AR-42 analogues incorporating a cycloalkyl group linked via a quaternary carbon atom, with up to 40-fold increased potency against human class I HDACs (e.g., JT86, IC50 0.7 nM, HDAC1), 25-fold increased cytotoxicity against five human cancer cell lines, and up to 70-fold less toxicity in normal human cells. JT86 was ninefold more potent than racAR-42 in promoting accumulation of acetylated histone H4 in MM96L melanoma cells. Molecular modeling and structure-activity relationships support binding to HDAC1 with tetrahydropyran acting as a hydrophobic shield from water at the enzyme surface. Such potent inhibitors of class I HDACs may show benefits in diseases (cancers, parasitic infections, inflammatory conditions) where AR-42 is active.
- Tng, Jiahui,Lim, Junxian,Wu, Kai-Chen,Lucke, Andrew J.,Xu, Weijun,Reid, Robert C.,Fairlie, David P.
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supporting information
p. 5956 - 5971
(2020/06/05)
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- Dihydropyrimidine compound and uses of dihydropyrimidine compound in drugs
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The present invention relates to a dihydropyrimidine compound and uses of the dihydropyrimidine compound as drugs, particularly as drugs for treatment and prevention of hepatitis B, particularly to acompound represented by a general formula (I) or (Ia) or an enantiomer, a diastereomer, a tautomer, a hydrate, a solvate or a pharmaceutically acceptable salt thereof, wherein each variable is definedin the specification. The invention further relates to uses of the compound represented by a general formula (I) or (Ia) or the enantiomer, the diastereomer, the tautomer, the hydrate, the solvate orthe pharmaceutically acceptable salt thereof as drugs, especially as drugs for treatment and prevention of hepatitis B. The formulas (I) and (Ia) are defined in the specification.
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Paragraph 0822; 0823; 0824; 0825
(2019/01/16)
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- DIHYDROPYRIMIDINE COMPOUNDS AND USES THEREOF IN MEDICINE
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Provided herein are a dihydropyrimidine compound and a pharmaceutical application thereof, especially the application used for treating and preventing HBV diseases. Specifically, provided herein is a compound having Formula (I) or (Ia), or an enantiomer, a diastereoisomer, a tautomer, a hydrate, a solvate, or a pharmaceutically acceptable salt thereof, wherein the variables of the formulas are as defined in the specification. Also provided herein is use of the compound having Formula (I) or (Ia), or an enantiomer, a diastereoisomer, a tautomer, a hydrate, a solvate, or a pharmaceutically acceptable salt thereof as a medicine, especially for treating and preventing HBV diseases.
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Paragraph 00307
(2019/01/17)
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- LYSOPHOSPHATIDIC ACID RECEPTOR ANTAGONISTS
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Compounds, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds to treat, prevent or diagnose diseases, disorders, or conditions associated with one or more of the lysophosphatidic acid receptors are provided.
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Paragraph 0738
(2013/03/26)
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