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PF-04447943

Cat No.
CEI-1469
Product Overview
PF-04447943 is a potent and selective inhibitor of PDE9. Phosphodiesterase 9 (PDE9) selectively degrades cGMP and limits the cGMP-mediated signal transduction which occurs following glutamate binding to NMDA receptors. PDE9 in cortex and hippocampus of rodents and humans play an important role in memory and learning. PF-04447943 have high affinity with Ki of 2.8, 4.5 and 18 nM for human, rhesus and rat recombinant PDE9 respectively and high selectivity for PDE9 versus PDEs1-8 and 10-11. In cultured hippocampal neurons, PF-04447943 (30-100 nM) significantly increased neurite outgrowth and synapse formation. Also, PF-04447943 (100 nM) significantly facilitated hippocampal slice LTP evoked by a weak tetanic stimulus. In mice model, PF-04447943 (1 mg/kg) significantly reduced the time spent interacting with the female mouse during the second encounter 24 h later compared to the first encounter, which suggested that PF-04447943 enhanced recognition memory. While, PF-04447943 (3 or 10 mg/kg) didn't change the interaction times for each encounter. These results suggested that PF-04447943 enhanced memory with an inverted U-shaped dose-response efficacy curve.
CAS No.
1082744-20-4
Molecular Weight
395.46
Storage
Store at -20°C
Synonyms
PF 04447943; PF04447943
Targets
PDE9
Molecular Formula
C20H25N7O2
Chemical Name
6-[(3S,4S)-4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl]-1-(oxan-4-yl)-2H-pyrazolo[3,4-d]pyrimidin-4-one
Solubility
DMSO
Shipping Conditions
Evaluation sample solution: ship with blue ice. All other available size: ship with RT, or blue ice upon request
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