Palladium(II) coordination and cyclometallated complexes derived from 3- and 5-aryl-substituted pyrazoles
摘要:
Palladium(II) coordination complexes of nine 3- or 5-arylpyrazoles (phenyl, 2-bromophenyl, or 3-methoxyphenyl), as well as of 3,5-diphenylpyrazole, are reported. A cis-trans mixture of [PdL2Cl2] isomers is found in the case of 3-aryl-1-methylpyrazoles, the cis-isomers being transformed into trans by heating. Only trans isomers are isolated with the other ligands. Cyclopalladation of 3-aryl-1-methyl-pyrazoles can be performed with palladium(II) acetate, and the resultant mu-acetate bridged dimers can be transformed into mu-chloro bridged dimers or acetylacetonate monomers. The structures of the complexes have been characterized by H-1- and C-13-NMR spectroscopy.
[EN] DIHYDROBENZOXAZINE AND TETRAHYDROQUINOXALINE SODIUM CHANNEL INHIBITORS<br/>[FR] INHIBITEURS DES CANAUX SODIQUES DE TYPE DIHYDROBENZOXAZINE ET TÉTRAHYDROQUINOXALINE
申请人:AMGEN INC
公开号:WO2013122897A1
公开(公告)日:2013-08-22
The present invention provides compounds of Formula I, or pharmaceutically acceptable salts thereof, that are inhibitors of voltage-gated sodium channels, in particular Nav 1.7. The compounds are useful for the treatment of diseases treatable by inhibition of sodium channels such as pain disorders. Also provided are pharmaceutical compositions containing compounds of the present invention.
DIHYDROBENZOXAZINE AND TETRAHYDROQUINOXALINE SODIUM CHANNEL INHIBITORS
申请人:AMGEN INC.
公开号:US20150057271A1
公开(公告)日:2015-02-26
The present invention provides compounds of Formula I, or pharmaceutically acceptable salts thereof, that are inhibitors of voltage-gated sodium channels, in particular Nav 1.7. The compounds are useful for the treatment of diseases treatable by inhibition of sodium channels such as pain disorders. Also provided are pharmaceutical compositions containing compounds of the present invention.
Non-catalyzed anionic coupling of aryllithiums with 1,2-dibromobenzene gives straightforward access. to valuable orthobromobiaryls. (C) 2004 Elsevier Ltd. All rights reserved.