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Helal, Christopher J; Arnold, Eric; Boyden, Tracey; Chang, Cheng; Chappie, Thomas A; Fisher, Ethan; Hajos, Mihaly; Harms, John F; Hoffman, William E; Humphrey, John M; Pandit, Jayvardhan; Kang, Zhijun; Kleiman, Robin J; Kormos, Bethany L; Lee, Che-Wah; Lu, Jiemin; Maklad, Noha; McDowell, Laura; McGinnis, Dina; O’Connor, Rebecca E; O’Donnell, Christopher J; Ogden, Adam; Piotrowski, Mary; Schmidt, Christopher J; Seymour, Patricia A; Ueno, Hirokazu; Vansell, Nichole; Verhoest, Patrick R; Yang, Edward X
Journal of medicinal chemistry, 02/2018, Letnik: 61, Številka: 3Journal Article
Computational modeling was used to direct the synthesis of analogs of previously reported phosphodiesterase 2A (PDE2A) inhibitor 1 with an imidazotriazine core to yield compounds of significantly enhanced potency. The analog PF-05180999 (30) was subsequently identified as a preclinical candidate targeting cognitive impairment associated with schizophrenia. Compound 30 demonstrated potent binding to PDE2A in brain tissue, dose responsive mouse brain cGMP increases, and reversal of N-methyl-d-aspartate (NMDA) antagonist-induced (MK-801, ketamine) effects in electrophysiology and working memory models in rats. Preclinical pharmacokinetics revealed unbound brain/unbound plasma levels approaching unity and good oral bioavailability resulting in an average concentration at steady state (C av,ss) predicted human dose of 30 mg once daily (q.d.). Modeling of a modified release formulation suggested that 25 mg twice daily (b.i.d.) could maintain plasma levels of 30 at or above targeted efficacious plasma levels for 24 h, which became part of the human clinical plan.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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