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公开(公告)号:US5347006A
公开(公告)日:1994-09-13
申请号:US999596
申请日:1992-12-31
IPC分类号: C07D211/22
CPC分类号: C07D211/22
摘要: The invention relates to a method for preparing HMP terfenadine comprising the steps of reacting terfenadone free-base with sodium borohydride to yield mixed polymorph terfenadine and crystallizing said mixed polymorph terfenadine from a seeded ester or ketone solvent system to yield substantially pure HMP terfenadine.
摘要翻译: 本发明涉及一种制备HMP特非那定的方法,该方法包括以下步骤:使特非多定游离碱与硼氢化钠反应,得到混合多晶型特非那定,并从接种的酯或酮溶剂体系中结晶所述混合多晶型特非那定,得到基本上纯的HMP特非那定。