| 摘要 |
The present application relates to crystalline 1,2-ethanedisulfonic acid salt and N,N'-dibenzylethylenediamine salt of montelukast. The salts are useful as therapeutic agents for the treatment of leukotriene mediated diseases and disorders. This application also relates to processes and intermediates for preparing the said salts and pharmaceutical compositions comprising the salts and optionally other therapeutic agents.
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