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The first highly potent and selective PDE8 inhibitors are disclosed. The initial tetrahydroisoquinoline hit was transformed into a nipecotic amide series in order to address a reactive metabolite issue. Reduction of lipophilicity to address metabolic liabilities uncovered an interesting diastereomer-dependent trend in turnover by human microsomes.
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http://dx.doi.org/10.1016/j.bmcl.2011.03.022 | DOI Listing |
J Med Chem
December 2024
Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Science, Southern Medical University, Guangzhou 510515, P. R. China.
Neurochem Res
August 2024
Institute of Pharmacology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, 271016, Shandong, China.
Phys Chem Chem Phys
April 2024
School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
The expression of phosphodiesterase 7A (PDE7A) and phosphodiesterase 8A (PDE8) genes is integral to human signaling pathways, and the inhibition of PDE7A has been associated with the onset of various diseases, including effects on the immune system and nervous system. The development of PDE7 selective inhibitors can promote research on immune and nervous system diseases, such as multiple sclerosis, chronic inflammation, and autoimmune responses. PDE8A is expressed alongside PDE8B, and its inhibitory mechanism is still unclear.
View Article and Find Full Text PDFCirc Res
April 2024
Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (H.Q., M.R., Y.X., A.R.-A., H.Y.A., B.K.M.), University of Houston, TX.
Background: In heart failure, signaling downstream the β2-adrenergic receptor is critical. Sympathetic stimulation of β2-adrenergic receptor alters cAMP (cyclic adenosine 3',5'-monophosphate) and triggers PKA (protein kinase A)-dependent phosphorylation of proteins that regulate cardiac function. cAMP levels are regulated in part by PDEs (phosphodiesterases).
View Article and Find Full Text PDFInt J Mol Sci
May 2023
Department of Neuroscience, Biomedical Research Institute BIOMED, Hasselt University, 3590 Diepenbeek, Belgium.
Traumatic spinal cord injury (SCI) is characterized by severe neuroinflammation and hampered neuroregeneration, which often leads to permanent neurological deficits. Current therapies include decompression surgery, rehabilitation, and in some instances, the use of corticosteroids. However, the golden standard of corticosteroids still achieves minimal improvements in functional outcomes.
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