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    • 1. 发明申请
    • Processes for Preparing a Polypeptide
    • 制备多肽的方法
    • US20100234566A1
    • 2010-09-16
    • US12727653
    • 2010-03-19
    • Anup Kumar RayHiren Kumar V. PatelJohannes LudescherMariappan AnbazhaganMahendra R. PatelIngolf Macher
    • Anup Kumar RayHiren Kumar V. PatelJohannes LudescherMariappan AnbazhaganMahendra R. PatelIngolf Macher
    • C07K1/08
    • C08G69/10A61K38/00C07K14/001
    • The present invention relates to an improved process for preparing a polypeptide or pharmaceutically acceptable salt thereof comprising L-tyrosine, L-alanine, L-glutamate, and L-lysine. The polypeptide or pharmaceutically acceptable salt thereof is preferably glatiramer acetate. The process comprises: (a) polymerizing a mixture of N-carboxyanhydride of L-tyrosine, N-carboxyanhydride of L-alanine, N-carboxyanhydride of a protected L-glutamate and N-carboxyanhydride of a protected L-lysine, in a polar aprotic solvent in the presence of an initiator, to form a protected polypeptide; (b) admixing an acid with the protected polypeptide formed in Step (a) and a solvent, to form a product; and (c) admixing a substance selected from the group consisting of an alkali or alkaline earth metal hydroxide, a carbonate, a hydrogencarbonate, and mixtures thereof, with the product formed in Step (b), and a solvent or a mixture of a solvent and water, to form a deprotected polypeptide or a pharmaceuticaly acceptable salt thereof.
    • 本发明涉及制备包含L-酪氨酸,L-丙氨酸,L-谷氨酸和L-赖氨酸的多肽或其药学上可接受的盐的改进方法。 多肽或其药学上可接受的盐优选为醋酸格拉司他。 该方法包括:(a)将L-酪氨酸的N-羧酸酐,L-丙氨酸的N-羧酸酐,受保护的L-谷氨酸的N-羧酸酐和受保护的L-赖氨酸的N-羧酸酐的极性 在引发剂存在下的非质子溶剂,以形成受保护的多肽; (b)将酸与步骤(a)中形成的被保护的多肽和溶剂混合以形成产物; 和(c)将选自碱金属或碱土金属氢氧化物,碳酸盐,碳酸氢盐及其混合物的物质与步骤(b)中形成的产物和溶剂或溶剂的混合物 和水,以形成去保护的多肽或其药学上可接受的盐。
    • 5. 发明申请
    • Processes for Preparing a Polypeptide
    • 制备多肽的方法
    • US20100174048A1
    • 2010-07-08
    • US12727758
    • 2010-03-19
    • Anup Kumar RayHiren Kumar V. PatelJohannes LudescherMariappan AnbazhaganMahendra R. PatelIngolf Macher
    • Anup Kumar RayHiren Kumar V. PatelJohannes LudescherMariappan AnbazhaganMahendra R. PatelIngolf Macher
    • C07K1/06C07K2/00
    • C08G69/10A61K38/00C07K14/001
    • The present invention relates to an improved process for preparing a polypeptide or pharmaceutically acceptable salt thereof comprising L-tyrosine, L-alanine, L-glutamate, and L-lysine. The polypeptide or pharmaceutically acceptable salt thereof is preferably glatiramer acetate. The process comprises: (a) polymerizing a mixture of N-carboxyanhydride of L-tyrosine, N-carboxyanhydride of L-alanine, N-carboxyanhydride of a protected L-glutamate and N-carboxyanhydride of a protected L-lysine, in a polar aprotic solvent in the presence of an initiator, to form a protected polypeptide; (b) admixing an acid with the protected polypeptide formed in Step (a) and a solvent, to form a product; and (c) admixing a substance selected from the group consisting of an alkali or alkaline earth metal hydroxide, a carbonate, a hydrogencarbonate, and mixtures thereof, with the product formed in Step (b), and a solvent or a mixture of a solvent and water, to form a deprotected polypeptide or a pharmaceutically acceptable salt thereof.
    • 本发明涉及制备包含L-酪氨酸,L-丙氨酸,L-谷氨酸和L-赖氨酸的多肽或其药学上可接受的盐的改进方法。 多肽或其药学上可接受的盐优选为醋酸格拉司他。 该方法包括:(a)将L-酪氨酸的N-羧酸酐,L-丙氨酸的N-羧酸酐,受保护的L-谷氨酸的N-羧酸酐和受保护的L-赖氨酸的N-羧酸酐的极性 在引发剂存在下的非质子溶剂,以形成受保护的多肽; (b)将酸与步骤(a)中形成的被保护的多肽和溶剂混合以形成产物; 和(c)将选自碱金属或碱土金属氢氧化物,碳酸盐,碳酸氢盐及其混合物的物质与步骤(b)中形成的产物和溶剂或溶剂的混合物 和水,以形成去保护的多肽或其药学上可接受的盐。
    • 6. 发明授权
    • Salt and polymorphs of desloratadine hemifumarate
    • 地氯雷他定半富马酸盐和多晶型物
    • US06962924B2
    • 2005-11-08
    • US10621670
    • 2003-07-17
    • Anup Kumar RayHiren PatelMahendra R Patel
    • Anup Kumar RayHiren PatelMahendra R Patel
    • A61K31/4545A61P37/08A61P43/00C07D401/04A61K31/445C07D401/08
    • C07D401/04
    • This invention provides a process of preparation of novel polymorphic hemifumarate salts of 8-chloro-6,11-dihyfro-11-(4-piperidylidene)-5H-benzo[5,6]-cyclohepta[1,2-b]pyridine, hereinafter called “desloratadine”. These polymorphic salt forms show much higher solubility in water and also in protic organic solvents compare to the parent desloratadine. The process of preparing the polymorphic forms comprising: a) mixing the ethanolic solution of desloratadine and fumaric acid at a temperature of from about 55° C. to 70° C., and stirring for 30 to 45 minutes after mixing, and thereafter filtering the solid thereby prepared in hot condition; to yield the polymorphic form 2 having a DSC of 232° C.±2° C.; or b) mixing the ethanolic solution of desloratadine and fumaric acid at a temperature of form about 15° C. room temperature (25° C.) and stirring at this temperature for 30 to 45 minutes, then filtering at room temperature; to yield the polymorphic form 1 having a DSC of 224° C.±2° C.
    • 本发明提供了8-氯-6,11-二氢-10-(4-哌啶基)-5H-苯并[5,6]环庚并[1,2-b]吡啶的新型多晶型富马酸盐的制备方法, 以下称为“地氯雷他定”。 与母体地氯雷他定相比,这些多晶型盐形式在水中以及在质子有机溶剂中显示出高得多的溶解度。 制备多晶型体的方法包括:a)在约55℃至70℃的温度下混合去氯雷他定和富马酸的乙醇溶液,并在混合后搅拌30至45分钟,然后过滤 固体,因此在热状态下制备; 得到DSC为232℃±2℃的多晶型2。 或b)在约15℃室温(25℃)的温度下将脱氯雷他定和富马酸的乙醇溶液混合并在该温度下搅拌30至45分钟,然后在室温下过滤; 得到DSC为224℃±2℃的多晶型1