摘要:
Tilidine isomerization and crystallization process, comprising providing a reaction mixture comprising cis-tilidine, a dicarboxylic acid, water and an alcohol having 3 to 6 carbon atoms; maintaining the reaction mixture at a temperature T of from 80 °C to 150 °C at specific conditions of time and temperature; removing water from the reaction mixture and crystallizing a trans-tilidine dicarboxylic acid salt from the reaction mixture. The process allows for an efficient integration of isomerization and separation and yields trans-tilidine in a form that is essentially free of side products which are difficult to separate.
摘要:
Certain compounds, or pharmaceutically acceptable salts or prodrugs thereof, pharmaceutical compositions comprising the same and methods of treating patients suffering from certain diseases and disorders response to the inhibition of KMO activity are described, which comprise administering to such patients an amount of at least one compound, or pharmaceutically acceptable salt or prodrug thereof described herein, effective to reduce signs or symptoms of the disease or disorder. These diseases include neurodegenerative disorders such as Huntington's disease.
摘要:
The present invention relates to a method of producing the 1-arylimino-2-vinylcyclopropanecarboxylic acid derivative represented by the formula (2) by reacting an N-(arylmethylene)glycine ester represented by the formula (1) with (E)-1,4-dibromo-2-butene using a sodium ethoxide at a yield which is close to that which is achieved when lithium tert-butoxide is used, preferably at a yield which is higher than or equal to that which is achieved when lithium tert-butoxide is used, without posing a problem with industrial-scale production. Further, the present invention contains a method of producing a (1R,2S)-1-arylimino-2-vinylcyclopropanecarboxylic acid derivative represented by the formula (4) by reacting an N-(arylmethylene)glycine ester represented by the formula (1) with (E)-1,4-dibromo-2-butene using a sodium ethoxide in the presence of an optically active catalyst.
摘要:
The compounds are useful for treating diseases that arise from inappropriate activity of proteins containing an acetyl-lysine. The compositions comprise a genus of cyclic vinylogous amides that are inhibitors of bromodomain.
摘要:
Cyclosporin derivatives, methods of manufacturing the cyclosporin derivatives and methods for treating subjects infected with certain viruses, including hepatitis virus or HIV by administering the cyclosporin derivatives are described.
摘要:
Objects of the present invention are to provide an industrially applicable method for producing an optically active α-amino acid in high yield and in a highly enantioselective manner, to provide a simple production method of an optically active α,α-disubstituted α-amino acid, and to provide an intermediate useful for the above production methods of an optically active α-amino acid and an optically active α,α-disubstituted α-amino acid. The present invention provides a production method of an optically active α-amino acid or a salt thereof, the production method comprising introducing a substituent into the α carbon in the α-amino acid moiety of a metal complex represented by the following Formula (1):
by an alkylation reaction, an aldol reaction, the Michael reaction, or the Mannich reaction, and releasing an optically pure α-amino acid enantiomer or a salt thereof by acid decomposition of the metal complex.