Method for the preparation of alpha1- [[(1,1-Dimethylethyl) amino] methyl]-4-hydroxy-1,3-benzenedimethanol, and intermediates used in its preparation
申请人:SCHERING CORPORATION
公开号:EP0259159A2
公开(公告)日:1988-03-09
There is disclosed an improved process for preparing albuterol which comprises reacting a 5-(haloacetyl)-2-hydroxybenzaldehyde with l,l-dimethylethanamine in an organic solvent and in an inert atmosphere to form 5-[[(l,l-dimethylethyl)amino]acetyl]-2-hydroxybenzaldehyde and reducing the carbonyl functions of this last-named compound to the corresponding hydroxy groups to form albuterol.
本发明公开了一种制备阿布特罗的改进工艺,该工艺包括在有机溶剂和惰性气氛中,使 5-(卤乙酰基)-2-羟基苯甲醛与 l,l-二甲基乙胺反应,生成 5-[[(l,l-二甲基乙基)氨基]乙酰基]-2-羟基苯甲醛,然后将该化合物的羰基官能团还原成相应的羟基,形成阿布特罗。