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Application of structure-based drug design and parallel chemistry to identify selective, brain penetrant, in vivo active phosphodiesterase 9A inhibitors.
Claffey MM, Helal CJ, Verhoest PR, Kang Z, Fors KS, Jung S, Zhong J, Bundesmann MW, Hou X, Lui S, Kleiman RJ, Vanase-Frawley M, Schmidt AW, Menniti F, Schmidt CJ, Hoffman WE, Hajos M, McDowell L, O'Connor RE, Macdougall-Murphy M, Fonseca KR, Becker SL, Nelson FR, Liras S. Claffey MM, et al. Among authors: helal cj. J Med Chem. 2012 Nov 8;55(21):9055-68. doi: 10.1021/jm3009635. Epub 2012 Oct 12. J Med Chem. 2012. PMID: 23025719
Identification of a brain penetrant PDE9A inhibitor utilizing prospective design and chemical enablement as a rapid lead optimization strategy.
Verhoest PR, Proulx-Lafrance C, Corman M, Chenard L, Helal CJ, Hou X, Kleiman R, Liu S, Marr E, Menniti FS, Schmidt CJ, Vanase-Frawley M, Schmidt AW, Williams RD, Nelson FR, Fonseca KR, Liras S. Verhoest PR, et al. Among authors: helal cj. J Med Chem. 2009 Dec 24;52(24):7946-9. doi: 10.1021/jm9015334. J Med Chem. 2009. PMID: 19919087
Use of structure-based design to discover a potent, selective, in vivo active phosphodiesterase 10A inhibitor lead series for the treatment of schizophrenia.
Helal CJ, Kang Z, Hou X, Pandit J, Chappie TA, Humphrey JM, Marr ES, Fennell KF, Chenard LK, Fox C, Schmidt CJ, Williams RD, Chapin DS, Siuciak J, Lebel L, Menniti F, Cianfrogna J, Fonseca KR, Nelson FR, O'Connor R, MacDougall M, McDowell L, Liras S. Helal CJ, et al. J Med Chem. 2011 Jul 14;54(13):4536-47. doi: 10.1021/jm2001508. Epub 2011 Jun 8. J Med Chem. 2011. PMID: 21650160
Phosphodiesterase 9A regulates central cGMP and modulates responses to cholinergic and monoaminergic perturbation in vivo.
Kleiman RJ, Chapin DS, Christoffersen C, Freeman J, Fonseca KR, Geoghegan KF, Grimwood S, Guanowsky V, Hajós M, Harms JF, Helal CJ, Hoffmann WE, Kocan GP, Majchrzak MJ, McGinnis D, McLean S, Menniti FS, Nelson F, Roof R, Schmidt AW, Seymour PA, Stephenson DT, Tingley FD, Vanase-Frawley M, Verhoest PR, Schmidt CJ. Kleiman RJ, et al. Among authors: helal cj. J Pharmacol Exp Ther. 2012 May;341(2):396-409. doi: 10.1124/jpet.111.191353. Epub 2012 Feb 10. J Pharmacol Exp Ther. 2012. PMID: 22328573
Design and discovery of 6-[(3S,4S)-4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl]-1-(tetrahydro-2H-pyran-4-yl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (PF-04447943), a selective brain penetrant PDE9A inhibitor for the treatment of cognitive disorders.
Verhoest PR, Fonseca KR, Hou X, Proulx-Lafrance C, Corman M, Helal CJ, Claffey MM, Tuttle JB, Coffman KJ, Liu S, Nelson F, Kleiman RJ, Menniti FS, Schmidt CJ, Vanase-Frawley M, Liras S. Verhoest PR, et al. Among authors: helal cj. J Med Chem. 2012 Nov 8;55(21):9045-54. doi: 10.1021/jm3007799. Epub 2012 Jul 25. J Med Chem. 2012. PMID: 22780914
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