A simple and rapid access to a variety of 4(5)-arylated imidazoles via palladium-catalyzed Suzuki–Miyaura cross-coupling reaction is described. Coupling parameters were screened for efficient C-4 arylation of N-unprotected 4-iodoimidazole with a broad range of boronic acids under microwave irradiation. Twenty-one imidazole derivatives were synthesized in modest to excellent yields in short reaction
Tricyclic inhibitors of poly(ADP-ribose) polymerases
申请人:Agouron Pharmaceuticals, Inc.
公开号:US06548494B1
公开(公告)日:2003-04-15
Compounds of the formula shown below are poly(ADP-ribosyl)transferase inhibitors:
Such compounds are useful as therapeutics in treating cancers and in ameliorating the effects of stroke, head trauma, and neurodegenerative disease.