A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield. ##STR00001##

The present invention relates to a novel AUTOTAC chimeric compound in which a new p62 ligand and a target-binding ligand are connected by a linker, a stereoisomer, hydrate, solvate or prodrug thereof, and a pharmaceutical or food composition for the prevention or treatment of diseases by degrading the target protein including the same as an active ingredient. They can target specific proteins to adjust their concentrations, and can also deliver drugs and other small molecule compounds to lysosomes. The AUTOTAC chimeric compound according to the present invention can be usefully used as a pharmaceutical composition for the prevention, amelioration or treatment of various diseases by selectively eliminating specific proteins.

The present application provides methods for the synthesis of intermediates in the synthesis of Safinamide or a pharmaceutically acceptable salt thereof herein Safinamide Mesylate, that is substantially free of impurities.

The present application provides methods for the synthesis of intermediates in the synthesis of Safinamide or a pharmaceutically acceptable salt thereof herein Safinamide Mesylate, that is substantially free of impurities.

The present application provides methods for the synthesis of intermediates in the synthesis of Safinamide or a pharmaceutically acceptable salt thereof herein Safinamide Mesylate, that is substantially free of impurities.

The present invention relates to a novel p62 ligand compound, a stereoisomer, hydrate, solvate or prodrug thereof, and a pharmaceutical or food composition for preventing or treating misfolded protein diseases comprising the same as an active ingredient. The p62 ligand compound according to the present invention can be usefully used as a pharmaceutical composition for the prevention, amelioration or treatment of various proteinopathies by activating selective autophagy in cells and thus selectively eliminating in vivo proteins, organelles and aggregates.

An object of the present invention is to provide a novel ascochlorin derivative which activates adenosine monophosphate-activated protein kinase (AMPK), and is useful in the treatment or prevention of diseases or conditions that involve AMPK dysregulation. The present invention provides a compound presented by formula I, a pharmaceutically acceptable salt or a solvate thereof.

An object of the present invention is to provide a novel ascochlorin derivative which activates adenosine monophosphate-activated protein kinase (AMPK), and is useful in the treatment or prevention of diseases or conditions that involve AMPK dysregulation. The present invention provides a compound presented by formula I, a pharmaceutically acceptable salt or a solvate thereof.

Zwitterion ligand metal complexes and methods of aerobic oxidation using a zwitterion ligand metal complex are provided. The zwitterion ligand metal complexes can include a transition metal salt and a zwitterion ligand, which can comprise a non-conjugated amide anion-phosphonium cation, an amide anion-ammonium cation, or an iminium cation. The methods of aerobic oxidation can include combining the zwitterion ligand metal complex with an oxidizable compound and molecular oxygen to allow the isolation of an oxidized compound from the oxidizable compound.

Zwitterion ligand metal complexes and methods of aerobic oxidation using a zwitterion ligand metal complex are provided. The zwitterion ligand metal complexes can include a transition metal salt and a zwitterion ligand, which can comprise a non-conjugated amide anion-phosphonium cation, an amide anion-ammonium cation, or an iminium cation. The methods of aerobic oxidation can include combining the zwitterion ligand metal complex with an oxidizable compound and molecular oxygen to allow the isolation of an oxidized compound from the oxidizable compound.