发明授权
US6143751A Pyridine derivatives and pharmaceutical compositions containing them 失效
吡啶衍生物和含有它们的药物组合物

Pyridine derivatives and pharmaceutical compositions containing them
摘要:
Compounds of the formula (I) wherein X, R.sup.1, R.sup.2, and Ar.sup.1 as defined in the specification. The compounds are useful medicaments, particularly in the treatment of asthma or rhinitis.
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