摘要:
The present invention relates to novel, non-secosteroidal, phenyl-thiophene compounds with vitamin D receptor (VDR) modulating activity that are less hypercalcemic than 1α,25 dihydroxy vitamin D3. These compounds are useful for treating bone disease and psoriasis.
摘要:
The invention provides a process for preparing 11 β-hydroxy steroid dehydrogenase type 1 inhibitors of formula 2 via a catalyzed reaction between a compound of formula 1 and a compound of formula R2LG in the presence of base: where R1, R2, X, Y, and LG are described in the specification. Exemplary catalysts contain palladium and one or more phosphine ligands. The process can be performed in a stereoselective manner to give enantiomerically enriched products.
摘要:
An article and method of manufacture of a catalyst. The article includes a nanoparticle of a noble metal based on material with a primary alkylamine layer disposed on the surface of the nanoparticle catalyst. The alkylamine layer of at least about one monolayer establishes a minimum level of selectivity for hydrogenation reactions.
摘要:
The invention provides a process for preparing 11 β-hydroxy steroid dehydrogenase type 1 inhibitors of formula 2 via a catalyzed reaction between a compound of formula 1 and a compound of formula R2LG in the presence of base: where R1, R2, X, Y, and LG are described in the specification. Exemplary catalysts contain palladium and one or more phosphine ligands. The process can be performed in a stereoselective manner to give enantiomerically enriched products.
摘要:
Disclosed in a process for making (1) a compound of the formula NC—CH2—CH2—CH2—CH2—CO2R′, wherein R′ is H or C1 to C12 alkyl, or (2) adipic acid or (3) dimethyl adipate, using as the substrate, 3-pentenenitrile, (2) 3-pentenoic acid or methyl 3-pentenoate, respectively, by contacting the substrate with carbon monoxide and a nucleophile in the presence of a Group VIII metal, a selected ligand, and an acid promoter. The nucleophile, which (a) an alcohol or water, or (b) water or (c) methanol, respectively, in the presence of a Group VIII metal, preferably palladium, a selected phosphine ligand, and an acid promoter.