Design, synthesis and evaluation of novel hydroxyamides as orally available anticonvulsants |
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Authors: | Schenck Hilary A Lenkowski Paul W Choudhury-Mukherjee Indrani Ko Seong-Hoon Stables James P Patel Manoj K Brown Milton L |
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Affiliation: | Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA. |
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Abstract: | Themisone, also known as Atrolactamide, was found, in the 1950s, to be a very potent anticonvulsant. It was hypothesized that the -CF(3) substitution would maintain the anticonvulsant activity. Anticonvulsant testing of our novel compounds by the National Institute of Health's Anticonvulsant Screening Project of the Antiepileptic Drug Discovery Program identified analogue 1, 3,3,3-trifluoro-2-hydroxy-2-phenyl-propionamide, to have potent anticonvulsant activity (MES ED(50) of 9.9 mg/kg, ScMET ED(50) of 34 mg/kg and TD(50) of 100 mg/kg). Therefore, a diverse range of analogues were synthesized utilizing multiple synthetic pathways to explore the structure-activity relationship. Patch clamp electrophysiology experiments demonstrate that compound 1 is an effective T-type calcium channel blocker. Altogether, these results suggest these compounds as a class of orally available anticonvulsants. |
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