prevalent in biologically active compounds and in pharmaceuticals. A ruthenium-catalyzed direct synthesis of β-disubstituted ketones by cross-coupling of two different secondary alcohols is reported. This new protocol was applied to the synthesis of variety of β-disubstituted ketones from various cyclic, acyclic, symmetrical, and unsymmetrical secondary alcohols. An amine–amide metal–ligand cooperation
Novel estrogen receptor ligand binding domain variants and novel ligands and pharmaceutical compositions
申请人:Novartis AG
公开号:EP2060582A1
公开(公告)日:2009-05-20
Mutants of steroid receptor ligand binding domains and synthetic ligands which have specific binding affinities for these receptors are provided. The use of these LBD-ligand combinations for construction of selective 'molecular gene switches' is disclosed. Methods of regulating gene function using these switches are provided.
assimilating to provide the cross-coupled products. Reactions are sensitive to steric hindrance. This new C-C bond forming methodology requires low catalyst load and catalytic amount of base. Notably, the reaction produces H2 and H2O as the only byproducts making the protocol greener, atom economical and environmentally benign.