Novel cyclic compounds as potent phosphodiesterase 4 inhibitors.
The synthesis and biological activity of a novel series of 2, 2-disubstituted indan-1,3-dione-based PDE4 inhibitors are described. This structurally unique class of PDE4 inhibitors is markedly different from the known PDE4 inhibitors such as RP 73401 (2) and CDP 840 (3). Structure-activity relationship (SAR) studies led to the identification of inhibitors with nanomolar potency and oral activity in a murine endotoxemia model for TNF-alpha inhibition. Unlike other classical PDE4 inhibitors, several analogues were found to be nonemetic in a canine emesis model at intravenous doses of up to 3 mg/kg.
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Department of Medicinal Chemistry, SW 8 Rhône-Poulenc Rorer Central Research, 500 Arcola Road, Collegeville, Pennsylvania 19426, USA.
Huang
F C
FC
Hanney
B
B
Souness
J
J
Miller
B
B
Liang
G
G
Mason
J
J
Djuric
S
S
D015105:3',5'-Cyclic-AMP Phosphodiesterases / Q000378:metabolism*; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology / Q000633:toxicity; D001549:Benzamides / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology / Q000633:toxicity; D001921:Brain / Q000378:metabolism; D054703:Cyclic Nucleotide Phosphodiesterases, Type 4; D004285:Dogs; D019446:Endotoxemia / Q000378:metabolism; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008070:Lipopolysaccharides / Q000633:toxicity; D017737:Macrophages, Peritoneal / Q000187:drug effects / Q000201:enzymology; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008958:Models, Molecular; D010726:Phosphodiesterase Inhibitors / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology / Q000633:toxicity; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology / Q000633:toxicity; D013329:Structure-Activity Relationship; D014409:Tumor Necrosis Factor-alpha / Q000037:antagonists & inhibitors; D014839:Vomiting / Q000139:chemically induced
D000894:Anti-Inflammatory Agents, Non-Steroidal; D001549:Benzamides; D008070:Lipopolysaccharides; D010726:Phosphodiesterase Inhibitors; D011725:Pyridines; D014409:Tumor Necrosis Factor-alpha; C102660:CDP 840; D015105:3',5'-Cyclic-AMP Phosphodiesterases; D054703:Cyclic Nucleotide Phosphodiesterases, Type 4; C087566:piclamilast