苯甘氨酸·d-樟脑磺酸盐用碳酸钠处理得粗D-苯甘氨酸。
Treatment of the obtained salt D-phenylglycined-camphor sulfonic salt with sodium carbonate gave crude D-phenylglycine.
将其用于拆分DL-对羟基苯甘氨酸外消旋混合物的电渗析过程。
The membranes were then used in the electrodialysis resolution process to separate DL-4-hydroxyphenylglycine racemic mixture.
本发明DL-对羟基苯甘氨酸纯化技术属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.
在纯丙酮和低含水量的混合溶剂中,对羟基苯甘氨酸硫酸盐溶解度很低。
It is found that the solubility of dl-p-HPGS is very small in pure acetone and in the solvent with low water content.
以手性苯甘氨酸丁酯为拆分剂的方法操作简单、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.
来源于巨大芽孢杆菌的固定化酶催化头孢克罗合成的能力较好,以苯甘氨酸甲酯(PGME)为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.
氯代苯甘氨酸是一类重要的医药中间体。文章叙述了目前氯代苯甘氨酸的制备的方法以及应用的进展,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.
本论文的第三至第六部分介绍了高效液相色谱手性流动相添加剂法拆分麻黄碱、对羟基苯甘氨酸甲酯、美托洛尔、布洛芬对映体。
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.
以水为溶剂,取代芳磺酸为拆分剂,用诱导结晶法,经成盐、拆分、水解过程,将DL-对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.
结果:7- 氨基-3-去乙酰氧基头孢烷酸(7-ADCA)和苯甘氨酸邓钠盐反应,只需要一步结晶即可得头孢氨苄,总收率89.4%。
Result: Through the reaction of 7-ADCA and Dane Salt, one step crystallization gives Cefalexin with the total yield 89.4% .
结果:7- 氨基-3-去乙酰氧基头孢烷酸(7-ADCA)和苯甘氨酸邓钠盐反应,只需要一步结晶即可得头孢氨苄,总收率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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