• 苯甘氨酸·d-樟脑磺酸碳酸钠处理D-苯甘氨酸

    Treatment of the obtained salt D-phenylglycined-camphor sulfonic salt with sodium carbonate gave crude D-phenylglycine.

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  • 将其用于拆分DL-羟基苯甘氨酸混合物电渗析过程

    The membranes were then used in the electrodialysis resolution process to separate DL-4-hydroxyphenylglycine racemic mixture.

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  • 发明DL-羟基苯甘氨酸纯化技术医药化工中间体生产领域

    The invention relates to a technology for purifying DL-p-hydroxyphenylglycine, which belongs to the field of the production of pharmaceutical and chemical intermediates.

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  • 丙酮含水量混合溶剂中,对羟基苯甘氨酸硫酸盐溶解度低。

    It is found that the solubility of dl-p-HPGS is very small in pure acetone and in the solvent with low water content.

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  • 手性氨酸拆分方法操作简单收率较高适于工业化生产

    The method of using optically active phenylglycine butyl ester as resolution agent can obtain the higher yield, and it is easy to operate. So it is suitable for industrial production.

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  • 来源于巨大芽杆菌固定化催化头孢克罗合成的能力好,以苯甘氨酸甲酯PGME底物较酰氨的效果好。

    The immobilized enzyme from Bacillis megaterium gave a better catalytic properties and the higher conversion was obtained using phenylglycine methyl ester (PGME) as acyl donor.

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  • 苯甘氨酸一类重要医药中间体文章叙述了目前氯代苯甘氨酸制备方法以及应用进展参考文献27篇。

    Chlorophenylglycine is an important intermediate for pharmaceutical production. The prepared methods and the advance of application were reviewed with 27 references in this article.

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  • 本论文的第三第六部分介绍高效液相色谱流动添加剂拆分麻黄碱、对羟基苯甘氨酸甲酯美托洛尔、布洛对映体。

    In part III to VI, ephedrine, tyrosine methyl ester, metoprolol, ibuprofen enantiomeric separation with chiral additive as mobile phase by high performance liquid chromatography are presented.

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  • 溶剂,取代磺酸拆分诱导结晶法,经成盐、拆分、水解过程,将DL-羟基苯甘氨酸拆分成D-对羟基苯甘氨酸

    The resolution of DL p hydroxyphenylglycine into its D and L isomers was studied by using aromatic sulfonic acid as resolving agent and water as solvent.

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  • 结果:7- 氨基-3-去乙酰氧基头孢烷酸(7-ADCA)苯甘氨酸邓钠反应,只需要一步结晶即可得头孢氨苄,收率89.4%。

    Result: Through the reaction of 7-ADCA and Dane Salt, one step crystallization gives Cefalexin with the total yield 89.4% .

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  • 结果:7- 氨基-3-去乙酰氧基头孢烷酸(7-ADCA)苯甘氨酸邓钠反应,只需要一步结晶即可得头孢氨苄,收率89.4%。

    Result: Through the reaction of 7-ADCA and Dane Salt, one step crystallization gives Cefalexin with the total yield 89.4% .

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