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公开(公告)号:US06506886B1
公开(公告)日:2003-01-14
申请号:US09786636
申请日:2001-03-07
申请人: Tae-Suk Lee , Ju-Cheol Lee , Kyoung-Ik Lee , Gwan-Sun Lee , Wan-Joo Kim
发明人: Tae-Suk Lee , Ju-Cheol Lee , Kyoung-Ik Lee , Gwan-Sun Lee , Wan-Joo Kim
IPC分类号: C07M100
CPC分类号: C07H17/08
摘要: Form II crystals of clarithromycin can be easily prepared by treating clarithromycin of different crystal forms with water or with a mixture of water and a water-immiscible organic solvent and isolating treated crystals by filtration.
摘要翻译: 克拉霉素II型晶体可以通过用水或水与水不混溶的有机溶剂的混合物处理不同晶型的克拉霉素并通过过滤分离处理的晶体来容易地制备。
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公开(公告)号:US06423846B1
公开(公告)日:2002-07-23
申请号:US09967581
申请日:2001-09-28
申请人: Young-Ho Moon , Kyung-Ik Lee , Gwan-Sun Lee
发明人: Young-Ho Moon , Kyung-Ik Lee , Gwan-Sun Lee
IPC分类号: C07D40112
CPC分类号: C07D401/12
摘要: Lansoprazole of formula (I) can be produced economically in a high yield using a simple, two-step method comprising reacting hydroxymethylpyridine and benzimidazole starting materials in the presence of a phosphine compound and a dialkyl azodicaboxlate and oxidizing the product of the first step in the presence of an organic radical catalyst:
摘要翻译: 式(I)的兰索拉唑可以使用简单的两步方法以高产率经济地生产,包括在膦化合物和偶氮二羧酸二烷基酯的存在下羟基甲基吡啶和苯并咪唑起始原料反应,并将第 有机自由基催化剂的存在:
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