| 摘要 |
The invention provides a novel &bgr;2 adrenergic receptor agonist in crystalline salt form. The invention also provides pharmaceutical compositions comprising the novel &bgr;2 adrenergic receptor agonist in crystalline salt form, formulations containing the pharmaceutical compositions, methods of using the crystalline salt to treat diseases associated with &bgr;2 adrenergic receptor activity, and processes useful for preparing such crystalline compounds.
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