期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 56, 期 16, 页码 6467-6477出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm4007565
关键词
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资金
- Israel Ministry of Defense, Medical Branch, Nuclear Biological Chemical (NBC) Protection Division [039-4489, 039-4576]
- NINDS, NIH [NO1-NS-4-2359]
- NIH/NINDS [Y1-O6-9613-01]
- USAMRICD [A120-B.P2009-2]
sec-Butylpropylacetamide (racemic-SPD) is a chiral CNS-active amide derivative of valproic acid (VPA). This study describes synthesis and stereospecific comparative pharmacodynamics (PD, anticonvulsant activity and teratogenicity) and pharmacokinetic (PK) analysis of four individual SPD stereoisomers. SPD stereoisomers' anticonvulsant activity was comparatively evaluated in several anticonvulsant animal models including the benzodiazepine-resistant status epilepticus (SE). SPD stereoisomers' PK-PD relationship was evaluated in rats. Teratogenicity of SPD stereoisomers was evaluated in SWV mice strain, susceptible to VPA-induced neural tube defect (NTD). SPD stereoisomers (141 or 283 mg/kg) did not cause NTD. SPD has stereoselective PK and PD. (2R,3S)-SPD and (2S,3R)-SPD higher clearance led to a 50% lower plasma exposure that may contribute to their relative lower activity in the pilocarpine-induced SE model. (2S,3S)-SPD, (2R,3R)-SPD, and racemic-SPD have similar anticonvulsant activity and a PK profile that are better than those of (2R,3S)-SPD and (2S,3R)-SPD, making them good candidates for development as new, potent antiepileptics with a potential in benzodiazepine-resistant SE.
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