4Y2B image
Deposition Date 2015-02-09
Release Date 2015-04-08
Last Version Date 2023-11-08
Entry Detail
PDB ID:
4Y2B
Title:
Co-crystal structure of 3-ethyl-2-(isopropylamino)-7-(pyridin-3-yl)thieno[3,2-d]pyrimidin-4(3H)-one bound to PDE7A
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
Resolution:
2.20 Å
R-Value Free:
0.19
R-Value Work:
0.15
R-Value Observed:
0.15
Space Group:
P 31 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:High affinity cAMP-specific 3',5'-cyclic phosphodiesterase 7A
Gene (Uniprot):PDE7A
Chain IDs:A
Chain Length:389
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation
2-(Isopropylamino)thieno[3,2-d]pyrimidin-4(3H)-one derivatives as selective phosphodiesterase 7 inhibitors with potent in vivo efficacy
Bioorg.Med.Chem.Lett. 25 1910 1914 (2015)
PMID: 25866242 DOI: 10.1016/j.bmcl.2015.03.031

Abstact

A new series of thienopyrimidinones is synthesized and evaluated as selective phosphodiesterase 7 (PDE7) inhibitors for the treatment of inflammatory diseases. The modification of the substituents on thienopyrimidinone revealed that an isopropylamino group at the 2-position was favorable for aqueous solubility. The introduction of 3-pyrrolidines at the 7-position resulted in good solubility, highly potent activity, and good PDE7 selectivity. Among the synthesized compounds, compound 46 exhibited the greatest inhibition of ear edema in a phorbol ester-induced mouse model.

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