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Phosphodiesterase inhibitors. Part 6: design, synthesis, and structure-activity relationships of PDE4-inhibitory pyrazolo[1,5-a]pyridines with anti-inflammatory activity.

Authors :
Kojima A
Takita S
Sumiya T
Ochiai K
Iwase K
Kishi T
Ohinata A
Yageta Y
Yasue T
Kohno Y
Source :
Bioorganic & medicinal chemistry letters [Bioorg Med Chem Lett] 2013 Oct 01; Vol. 23 (19), pp. 5311-6. Date of Electronic Publication: 2013 Aug 08.
Publication Year :
2013

Abstract

We previously identified KCA-1490 [(-)-6-(7-methoxy-2-trifluoromethyl-pyrazolo[1,5-a]pyridin-4-yl)-5-methyl-4,5-dihydro-3-(2H)-pyridazinone], a dual PDE3/4 inhibitor. In the present study, we found highly potent selective PDE4 inhibitors derived from the structure of KCA-1490. Among them, N-(3,5-dichloropyridin-4-yl)-7-methoxy-2-(trifluoromethyl)pyrazolo[1,5-a]pyridine-4-carboxamide (2a) had good anti-inflammatory effects in an animal model.<br /> (Copyright © 2013 Elsevier Ltd. All rights reserved.)

Details

Language :
English
ISSN :
1464-3405
Volume :
23
Issue :
19
Database :
MEDLINE
Journal :
Bioorganic & medicinal chemistry letters
Publication Type :
Academic Journal
Accession number :
23988356
Full Text :
https://doi.org/10.1016/j.bmcl.2013.07.069