Ligands for metals and improved metal-catalyzed processes based thereon
申请人:Massachusetts Institute of Technology
公开号:US06307087B1
公开(公告)日:2001-10-23
One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. The subject methods provide improvements in many features of the transition metal-catalyzed reactions, including the range of suitable substrates, reaction conditions, and efficiency.
Ligands for Metals and Improved Metal-Catalyzed Processes Based Thereon
申请人:Buchwald L. Stephen
公开号:US20080033171A1
公开(公告)日:2008-02-07
One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. The subject methods provide improvements in many features of the transition metal-catalyzed reactions, including the range of suitable substrates, reaction conditions, and efficiency.
Pharmaceutical compositions comprising at least one compound of the formulas (Ia) or (Ib) or (IIa) or (IIb) and a pharmaceutically acceptable carrier
wherein the symbols and substituents have the following meaning —X— is e.g.
and Y being e.g.
or the pharmaceutically acceptable salts can be applied to modulate the in-vitro and in-vivo binding processes mediated by E-, P- or L-selectin binding.