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1.
公开(公告)号:USRE40794E1
公开(公告)日:2009-06-23
申请号:US11999720
申请日:2002-09-20
申请人: Karel M. J. Brands , Raymond Cvetovich , Louis S. Crocker , Michael D. Ward , Amar J. Mahajan , Robert M. Wenslow , John M. Williams , Daniel R. Sidler , Charles Orella , Elizabeth S. Fisher , Ronald Jobson
发明人: Karel M. J. Brands , Raymond Cvetovich , Louis S. Crocker , Michael D. Ward , Amar J. Mahajan , Robert M. Wenslow , John M. Williams , Daniel R. Sidler , Charles Orella , Elizabeth S. Fisher , Ronald Jobson
IPC分类号: C07D477/20
CPC分类号: C07D477/20
摘要: A process for preparing a crystalline, carbapenem monosodium salt of formula IIa: characterized by the steps a) adding about 10 to 30% of an organic solvent to an aqueous solution of the carbapenem, b) cooling the resulting solution to less than −5° C., c) adjusting the pH using a solution containing an acid in an organic solvent to give the appropriate pH for crystallization, and d) crystallizing the compound by adding methanol, and a C2-5 alcohol at between −5 and −25° C.
摘要翻译: 制备式IIa的结晶碳青霉烯单钠盐的方法,其特征在于以下步骤:a)向碳青霉烯的水溶液中加入约10至30%的有机溶剂,b)将所得溶液冷却至小于-5℃ c)c)使用在有机溶剂中含有酸的溶液调节pH以得到适当的结晶pH,和d)通过加入甲醇和C2-5醇在-5至-25℃之间使该化合物结晶 C。
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2.
公开(公告)号:US07145002B2
公开(公告)日:2006-12-05
申请号:US10485319
申请日:2002-09-20
申请人: Karel M. J. Brands , Raymond Cvetovich , Louis S. Crocker , Michael D. Ward , Amar J. Mahajan , Robert M. Wenslow , John M. Williams , Daniel R. Sidler , Charles Orella , Elizabeth S. Fisher , Ronald Jobson
发明人: Karel M. J. Brands , Raymond Cvetovich , Louis S. Crocker , Michael D. Ward , Amar J. Mahajan , Robert M. Wenslow , John M. Williams , Daniel R. Sidler , Charles Orella , Elizabeth S. Fisher , Ronald Jobson
IPC分类号: C07D477/20
CPC分类号: C07D477/20
摘要: A process for preparing a crystalline, carbapenem monosodium salt of formula IIa: characterized by the steps a) adding about 10 to 30% of an organic solvent to an aqueous solution of the carbapenem, b) cooling the resulting solution to less than −5° C., c) adjusting the pH using a solution containing an acid in an organic solvent to give the appropriate pH for crystallization, and d) crystallizing the compound by adding methanol, and a C2-5 alcohol at between −5 and −25° C.
摘要翻译: 制备式IIa的结晶碳青霉烯单钠盐的方法,其特征在于以下步骤:a)向碳青霉烯的水溶液中加入约10至30%的有机溶剂,b)将所得溶液冷却至小于-5℃ c)c)使用在有机溶剂中含有酸的溶液调节pH以得到适当的结晶pH,和d)通过加入甲醇和C 2-5醇来使化合物结晶 在-5和-25℃之间
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