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ID: ALA2203054

Journal: ACS Med Chem Lett

Title: Synthesis and biological evaluation of a selective N- and p/q-type calcium channel agonist.

Authors: Liang M, Tarr TB, Bravo-Altamirano K, Valdomir G, Rensch G, Swanson L, DeStefino NR, Mazzarisi CM, Olszewski RA, Wilson GM, Meriney SD, Wipf P.

Abstract: The acute effect of the potent cyclin-dependent kinase (cdk) inhibitor (R)-roscovitine on Ca(2+) channels inspired the development of structural analogues as a potential treatment for motor nerve terminal dysfunction. On the basis of a versatile chlorinated purine scaffold, we have synthesized ca. 20 derivatives and characterized their N-type Ca(2+) channel agonist action. Agents that showed strong agonist effects were also characterized in a kinase panel for their off-target effects. Among several novel compounds with diminished cdk activity, we identified a new lead structure with a 4-fold improved N-type Ca(2+) channel agonist effect and a 22-fold decreased cdk2 activity as compared to (R)-roscovitine. This compound was selective for agonist activity on N- and P/Q-type over L-type calcium channels.

CiteXplore: 24936234

DOI: 10.1021/ml3002083