专利名称：Process for preparing substituted pyridnes发明人：Robert L. Dow,Steven R. Schneider申请号：US10684146申请日：20031010
公开号：US20040133005A1公开日：20040708
摘要：A process for preparing a compound of the formula wherein n, R<1>, R<2>,R<3> and X are as defined above, used as an intermediate in the synthesis of beta -adrenergic receptor agonists.
申请人：PFIZER INC
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