摘要:
Fingolimod hydrochloride (I) as Form-β obtained by the process of present invention may be useful as active pharmaceutical ingredient in pharmaceutical compositions for the treatment of autoimmune related disorder including multiple sclerosis.
摘要:
Compounds of formula (I): where, n, R1, R4a, R4b, R5, R7 and R8 are defined herein, or pharmaceutically acceptable salts thereof, are described herein. The disclosed compounds have activity as SHIP1 modulators, and thus may be used to treat any of a variety of diseases, disorders or conditions that would benefit from SHIP1 modulation. Compositions comprising a compound of formula (I) in combination with a pharmaceutically acceptable carrier or diluent are also disclosed, as are methods of SHIP1 modulation by administration of such compounds to an animal in need thereof.
摘要:
This invention relates to dialdehyde or dinitrile compounds, which are useful for stereoselective synthesis of piperidine, pyrrolidine, and azepane derivatives.
摘要:
The present invention relates to a method for the preparation of a compound of formula (I),
wherein R 1 is different to R 2 ; R 3 is different to R 4 ; and R 1 , R 2 , R 3 and R 4 are each a moiety other than hydrogen, which method comprises, i) photoirradiating at an intensity above ambient intensity a solution comprising a compound of formula (II),
wherein R 1 , R 2 , R 3 and R 4 are as defined above, to form a solution of a mixture of compounds of formula (IIa) and (IIb),
wherein R 1 , R 2 , R 3 and R 4 are as defined above; and ii) contacting the mixture of compounds (IIa) and (IIb) with a hydrogen donating agent in the presence of an asymmetric hydrogenation catalyst, after initiation of i) and before termination of i).
摘要:
Improved process for working up diacetone acrylamide solutions, obtained by reaction of acetone or diacetone alcohol with acrylonitrile and sulfuric acid and subsequent dilution and neutralization, in which a) the organic phase obtained subsequent to the neutralization, which comprises the crude diacetone acrylamide, is hydrolyzed by addition of an aqueous alkaline solution in order to remove acrylamide, then b) after phase separation has been carried out, the organic phase, which comprises the crude diacetone acrylamide, is neutralized by addition of an acid, and c) in succession, low-boiling-point byproducts are removed by distillation in the presence of one or more polymerization inhibitors, then t-butylacrylamide is removed by distillation and, finally, the diacetone acrylamide is isolated by product distillation, and d) the diacetone acrylamide thus obtained is converted into its final form.
摘要:
This invention relates to a method to modulate exogenous gene expression in which an ecdysone receptor complex comprising: a DNA binding domain; a ligand binding domain; a transactivation domain; and a ligand is contacted with a DNA construct comprising: the exogenous gene and a response element; wherein the exogenous gene is under the control of the response element and binding of the DNA binding domain to the response element in the presence of the ligand results in activation or suppression of the gene. The ligands comprise a class of ketones.