申请人:Joshi Anna Ramesh
公开号:US20060089376A1
公开(公告)日:2006-04-27
The present invention relates to of salts of 5-methoxy-2-(4-methoxy-3,5-dimethylpyridin-2-ylmethylsulfinyl) imidazo[4,5-b]pyridine (Tenatoprazole) of formula (1)
wherein X is Li, Na, Ca, K or Mg and to a process for the preparation thereof which comprises oxidizing a compound of formula (2) and isolating the salt (Li, Na) by treatment with the alkali hydroxide or exchanging the sodium salt of tenatoprazole with Mg
++
or Ca
++
cation.
本发明涉及公式(1)中的5-甲氧基-2-(4-甲氧基-3,5-二甲基吡啶-2-基甲基磺酰基)咪唑[4,5-b]吡啶(替纳托普拉唑)的盐,其中X为Li,Na,Ca,K或Mg,以及制备该盐的过程,该过程包括氧化公式(2)的化合物并通过与碱性氢氧化物处理或用Mg ++或Ca ++阳离子交换替纳托普拉唑的钠盐来分离盐(Li,Na)。