Abstract:
The invention relates to a series of novel chiral phosphorus ligands of formulae (Ia) and (Ib): wherein R, 1 - rR> 4 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydro genation.
Abstract:
A process for stereoselective synthesis of a compound of Formula (X) wherein: R1 is an aryl group substituted with one to three substituent groups, wherein each substituent group of R1 is independently C1-C5 alkyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, halogen, carboxy, cyano, or trifluoromelhyl, wherein each substituent group of R1 is optionally independently substituted with one to three substituents selected from C1-C3 alkyl, C1-C3 alkoxy, phenyl, and alkoxyphenyl; R2 and R3 are each independendy C1-C5 alkyl; R is C1-C5 alkyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylsulfonylamino, aminosulfonyl, C1- C5 alkylaminosulfonyl, C1-C5 dialkylaminosulfonyl, halogen, hydroxy, carboxy, cyano, trifluoromethyl, trifluoromethoxy, trifluoromethylthio, or C1-C5 alkylthio wherein the sulfur atom is optionally oxidized to a sulfoxide or sulfone.
Abstract:
Disclosed is a process for preparing a macrocyclic compound of the formula (I) wherein a hydroxyl-substituted macrocyclic compound of formula (3) is reacted with a sulfonyl-substituted compound of formula QUIN. The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
Abstract:
Disclosed is a process of making compounds of formula (I) wherein R 1 , R 2 , R 3 , R 4 and Ra of formula (I) are defined herein. The product compounds inhibit production of cytokines involved in inflammatory processes and are thus useful for treating diseases and pathological conditions involving inflammation. Also disclosed are intermediates useful in making such compounds.
Abstract:
This invention relates to novel phosphorous ligands useful for organic transformations. Methods of making and using the ligands in organic synthesis are described. The invention also relates to processes for preparing the novel ligands
Abstract:
This invention relates to novel phosphorous ligands useful for organic transformations. Methods of making and using the ligands in organic synthesis are described. The invention also relates to processes for preparing the novel ligands
Abstract:
Disclosed is a compound of formula I and salts thereof. Also disclosed are methods of making the compound of formula (I) and the use of the compound as an intermediate for making pharmaceutically active compounds such as 11- -hydroxysteroid hydrogenase type 1 (11- β-HSD1) inhibitors.