The present invention relates to a process for preparing mono-N-sulphonylated diamines by reacting diamines with sulphonyl halides in the presence of water, base and organic solvents.
本发明涉及一种通过在水、碱和有机溶剂存在下将二胺与磺酰卤反应制备单N-磺酰化二胺的方法。
PROCESS FOR PREPARING (S)-3-N-METHYLAMINO-1-(2-THIENYL)-1-PROPANOL
申请人:Kreis Michael
公开号:US20140031564A1
公开(公告)日:2014-01-30
The present invention relates to a method for preparing (S)-3-N-methylamino-1-(2-thienyl)-1-propanol and salts thereof.
本发明涉及一种制备(S)-3-N-甲基氨基-1-(2-噻吩基)-1-丙醇及其盐的方法。
3-Hydroxy-3-(2-thienyl) propionamides and production method thereof, and production method of 3-amino-1-(2-thienyl)-1-propanols using the same
申请人:Takehara Jun
公开号:US20050107621A1
公开(公告)日:2005-05-19
The object of the present invention is to provide 3-hydroxy-3-(2-thienyl)propionamides useful as synthesis intermediates of pharmaceutical preparations and the like and a method for obtaining optically active 3-amino-1-(2-thienyl)-1-propanols using the same with high reaction yield, high optical yield and industrially low cost.
According to the present invention, 3-amino-1-(2-thienyl)-1-propanols are obtained by carrying out asymmetric reduction of a β-ketocarbonyl compound having thiophene ring in the presence of a catalyst constituted from a compound of a group VIII or IX metal in the periodic table (e.g., a ruthenium compound) and an asymmetric ligand represented by a specified optically active diamine derivative (e.g., a diphenylethylenediamine derivative), or using a cell, a treated product of said cell or the like of a microorganism, and as occasion demands, carrying out amidation of the ester group and then carrying out reduction of the amido group.
(each of the substituents is as described in claim 1).
Process for preparing 3-heteroaryl-3-hydroxypropanoic acid derivatives
申请人:Berendes Frank
公开号:US20060264641A1
公开(公告)日:2006-11-23
The invention relates to a process for preparing enantiomer-enriched 3-heteroaryl-3-hydroxypropanoic acid derivatives and 3-heteroaryl-1-aminopropan-3-ols, and to their use.
3-HYDROXY-3-(2-THIENYL)PROPIONAMIDE COMPOUND, PROCESS FOR PRODUCING THE SAME, AND PROCESS FOR PRODUCING 3-AMINO-1-(2-THIENYL)-1-PROPANOL COMPOUND THEREFROM
申请人:Mitsubishi Chemical Corporation
公开号:EP1486493A1
公开(公告)日:2004-12-15
The object of the present invention is to provide 3-hydroxy-3-(2-thienyl)propionamides useful as synthesis intermediates of pharmaceutical preparations and the like and a method for obtaining optically active 3-amino-1-(2-thienyl)-1-propanols using the same with high reaction yield, high optical yield and industrially low cost.
According to the present invention, 3-amino-1-(2-thienyl)-1-propanols are obtained by carrying out asymmetric reduction of a β-ketocarbonyl compound having thiophene ring in the presence of a catalyst constituted from a compound of a group VIII or IX metal in the periodic table (e.g., a ruthenium compound) and an asymmetric ligand represented by a specified optically active diamine derivative (e.g., a diphenylethylenediamine derivative), or using a cell, a treated product of said cell or the like of a microorganism, and as occasion demands, carrying out amidation of the ester group and then carrying out reduction of the amido group.