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J Med Chem. 2016 Sep 22;59(18):8398-411. doi: 10.1021/acs.jmedchem.6b00756. Epub 2016 Sep 12.

Preparation, Antiepileptic Activity, and Cardiovascular Safety of Dihydropyrazoles as Brain-Penetrant T-Type Calcium Channel Blockers.

Author information

1
Drug Discovery Chemistry, Biology and Pharmacology, Actelion Pharmaceuticals Ltd. , Gewerbestrasse 16, CH-4123 Allschwil, Switzerland.
2
Kalexsyn, Inc. , 4502 Campus Drive, Kalamazoo, Michigan 49008, United States.

Abstract

A series of dihydropyrazole derivatives was developed as potent, selective, and brain-penetrating T-type calcium channel blockers. An optimized derivative, compound 6c, was advanced to in vivo studies, where it demonstrated efficacy in the WAG/Rij rat model of generalized nonconvulsive, absence-like epilepsy. Compound 6c was not efficacious in the basolateral amygdala kindling rat model of temporal lobe epilepsy, and it led to prolongation of the PR interval in ECG recordings in rodents.

PMID:
27579577
DOI:
10.1021/acs.jmedchem.6b00756
[Indexed for MEDLINE]

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