[EN] CERAMIDE GALACTOSYLTRANSFERASE INHIBITORS FOR THE TREATMENT OF DISEASE<br/>[FR] INHIBITEURS DE LA CÉRAMIDE GALACTOSYLTRANSFÉRASE POUR LE TRAITEMENT DE MALADIES
申请人:BIOMARIN PHARM INC
公开号:WO2017214505A1
公开(公告)日:2017-12-14
Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with the enzyme ceramide galactosyltransferase (CGT), such as, for example, lysosomal storage diseases. Examples of lysosomal storage diseases include, for example, Krabbe disease and Metachromatic Leukodystrophy.
Allylic Oxidations Catalyzed by Dirhodium Catalysts under Aqueous Conditions
申请人:Doyle Michael P.
公开号:US20090093638A1
公开(公告)日:2009-04-09
The present invention relates to compositions and methods for achieving the efficient allylic oxidation of organic molecules, especially olefins and steroids, under aqueous conditions. The invention concerns the use of dirhodium (II,II) “paddlewheel complexes, and in particular, dirhodium carboximate and tert-butyl hydroperoxide as catalysts for the reaction. The use of aqueous conditions is particularly advantageous in the allylic oxidation of 7-keto steroids, which could not be effectively oxidized using anhydrous methods, and in extending allylic oxidation to enamides and enol ethers.
A series of chiral enantiomerically pure 2-aryloxazolines was synthesized. (4S)-2-(2′,6′-dimethoxyphenyl)-4-isopropyloxazoline proved to be an efficient chiral ligand for the Cu-catalyzed conjugate addition of Me3Al to cyclohexadienone, and by using 20mol% of this ligand, 1,4-adduct was obtained in 68% ee. In addition, TBDMSOTf is crucial for the asymmetric conjugate addition to proceed with good chemical
Enantioselective Cu-catalyzed 1,4-addition of Me3Al to a 4,4-disubstituted cyclohexa-2,5-dienone: Novel effect of trialkylsilylOTf on enantioselectivity
The asymmetric Cu-catalyzed conjugate addition of Me3Al to cyclohexa-2,5-dienone in the presence of 20 mol% of chiral 2-aryloxazolines and 120 mol% of TBDMSOTf gave the corresponding addition product in good yield with enantiomeric purities of up to 68% ee under mild conditions. Without TBDMSOTf, the ee was dramatically decreased, even in the presence of chiral 2-aryloxazolines.