Phenylhydrazine or hydrazine react with 3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one (1) to give 4-acetoacetyl-3-methylpyrazolin-5-ones 4. The synthesis of bipyrazoles and pyrazoloisoxazolesfrom 4 are reported.
DIPYRAZOLE COMPOUNDS AND THEIR USE AS CENTRAL NERVOUS SYSTEM AGENTS
申请人:KOSLEY W. Raymond
公开号:US20080090872A1
公开(公告)日:2008-04-17
The present invention is directed to dipyrazole compounds of formula I and their pharmaceutically acceptable salts, stereoisomers, tautomers, or solvates thereof. Novel compounds include those of formula I.
The compounds of this invention modulate AMPA and NMDA receptor function, and therefore are useful as pharmaceutical agents, especially for the treatment of neuropsychiatric disorders.
Dipyrazole compounds and their use as central nervous system agents
申请人:Aventis Pharmaceuticals Inc.
公开号:US08053458B2
公开(公告)日:2011-11-08
The present invention is directed to dipyrazole compounds of formula I and their pharmaceutically acceptable salts, stereoisomers, tautomers, or solvates thereof. Novel compounds include those of formula I.
The compounds of this invention modulate AMPA and NMDA receptor function, and therefore are useful as pharmaceutical agents, especially for the treatment of neuropsychiatric disorders.