7 articles for thisTarget
The following articles (labelled with PubMed ID or TBD) are for your review
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Article Title
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Synthesis and biological evaluation of imidazol-2-one and 2-cyanoiminoimidazole derivatives: novel series of PDE4 inhibitors.

Janssen-Cilag
A prenylated flavonol, sophoflavescenol: a potent and selective inhibitor of cGMP phosphodiesterase 5.

Korea Institute of Science & Technology
Identification of purine inhibitors of phosphodiesterase 7 (PDE7).

Bristol-Myers Squibb Pharmaceutical Research Institute