Synthesis of Potent Bicyclic Bisarylimidazole c-Jun N-Terminal Kinase Inhibitors by Catalytic C−H Bond Activation
摘要:
The efficient preparation of the privileged bicyclic bisarylimidazole kinase inhibitor scaffold was accomplished using rhodium-catalyzed C-H activation and intramolecular alkylation. The key C-H activation/alkylation step represents one of the first evaluations of diastereocontrol in catalyzed C-H activation/olefin alkylation processes. Several inhibitors of JNK3 were prepared using this sequence, with the most potent inhibitor having an IC50 value of 1.6 nM.
Synthesis of Potent Bicyclic Bisarylimidazole c-Jun N-Terminal Kinase Inhibitors by Catalytic C−H Bond Activation
摘要:
The efficient preparation of the privileged bicyclic bisarylimidazole kinase inhibitor scaffold was accomplished using rhodium-catalyzed C-H activation and intramolecular alkylation. The key C-H activation/alkylation step represents one of the first evaluations of diastereocontrol in catalyzed C-H activation/olefin alkylation processes. Several inhibitors of JNK3 were prepared using this sequence, with the most potent inhibitor having an IC50 value of 1.6 nM.
Regio- and Enantioselective <i>N</i>-Allylations of Imidazole, Benzimidazole, and Purine Heterocycles Catalyzed by Single-Component Metallacyclic Iridium Complexes
作者:Levi M. Stanley、John F. Hartwig
DOI:10.1021/ja902243s
日期:2009.7.1
Kinetic studies on the allylation of benzimidazole catalyzed by metallacyclic iridium-phosphoramidite complexes, in combination with studies on the deactivation of these catalysts in the presence of heterocyclic nucleophiles, provide insight into the effects of the structures of the phosphoramidite ligands on the stability of the metallacyclic catalysts. The data obtained from these studies have led to
Synthesis of Potent Bicyclic Bisarylimidazole c-Jun N-Terminal Kinase Inhibitors by Catalytic C−H Bond Activation
作者:Jason C. Rech、Michihisa Yato、Derek Duckett、Brian Ember、Philip V. LoGrasso、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/ja0676004
日期:2007.1.1
The efficient preparation of the privileged bicyclic bisarylimidazole kinase inhibitor scaffold was accomplished using rhodium-catalyzed C-H activation and intramolecular alkylation. The key C-H activation/alkylation step represents one of the first evaluations of diastereocontrol in catalyzed C-H activation/olefin alkylation processes. Several inhibitors of JNK3 were prepared using this sequence, with the most potent inhibitor having an IC50 value of 1.6 nM.