Synthesis and SAR of 2-(4-fluorophenyl)-3-pyrimidin-4-ylimidazo[1,2-a]pyridine derivatives as anticoccidial agents
摘要:
Compounds 10a-10d and 10i are very potent inhibitors of Eimeria tenella cGMP-dependent protein kinase (0.081-0.32 nM) and are very efficacious antiparasitic agents in vivo when administered to chickens at 12.5-25 ppm levels in the feed.
mortality. Resistance to current anticoccidials has prompted the search for new therapeutic agents with potent in vitro and in vivo activity against Eimeria. Antiparasitic activity is due to inhibition of a parasite specific cGMP-dependent protein kinase (PKG). In this study, we present the synthesis and biological activity of imidazo[1,2-a]pyridine anticoccidialagents. From this series, several compounds
to current anticoccidials has prompted the search for new therapeutic agents with potent in vitro and in vivo activity against Eimeria. Recently, we reported the synthesis and biological activity of potent imidazo[1,2-a]pyridine anticoccidialagents. Antiparasitic activity is due to inhibition of a parasite specific cGMP-dependent protein kinase (PKG). In this study, we report the synthesis and anticoccidial
1
wherein the symbols have meaning as defined herein, are p38 MAP kinase inhibitors, and are useful pharmaceutically for treating TNF&agr; and IL-
1
mediated diseases, such as rheumatoid arthritis, and diseases of bone metabolism, e.g. osteoporosis.
Thiazole and imidazo (4,5-B) pyridine compounds and their pharmaceutical use
申请人:——
公开号:US20040082604A1
公开(公告)日:2004-04-29
Compounds of formula (I)
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and pharmaceutically-acceptable and pharmaceutically-acceptable and -cleavable esters thereof and acid addition salts thereof, wherein the symbols are as defined are MAP kinase inhibitors, useful pharmaceutically for treating TNF&agr; and IL-1 mediated diseases such as rheumatoid arthritis and diseases of bone metabolism, e.g. osteoporosis.
Compounds described by the Formula (I): (I) or pharmaceutically acceptable salts, or N-oxides thereof. The compounds are useful for the treatment and prevention of protozoal diseases in mammals and birds. A method for controlling coccidiosis in poultry comprises administering an effective amount of the compound alone, or in combination with one or more anticoccidial agent(s). A composition for controlling coccidiosis in poultry comprises the compound alone, or in combination with one or more anticoccidial agent(s). Methods for the treatment and prevention of mammalian protozoal diseases, such as, for example, toxoplasmosis, malaria, African trypanosomiasis, Chagas disease, and opportunistic infections comprise administering the compound alone, or in combination with one or more antiprotozoal agent(s).