目的:研究水杨酸葡萄糖酯的合成。
Aim: To study the synthesis of salicylic acid glucose esters.
方法:由葡萄糖通过缩合、氧化、去保护、酯化反应制备水杨酸葡萄糖酯。
Methods: Salicylic acid glucose esters were synthesized from glucose by condensation, oxidization, deprotection and esterification.
生成的氨基酸葡萄糖酯可通过HPLC-UV定量检测,最适条件下的反应转化率达到90%以上。
The product could be tested qualitatively and quantitatively by HPLC-UV. The conversion was beyond 90% under the best conditions.
采用相转移催化法合成了1羟基2萘甲酸四乙酰葡萄糖酯,并进行了IR、1HNMR、MS和元素分析,证明了其结构。
Tetraacetyl glucosyl ester of 1 hydroxy 2 naphthoic acid was synthesized by PTC method and confirmed by IR, 1HNMR, MS and elemental analysis.
但是,由于乙酰丙酸酯主要由葡萄糖或石油基产物转化生产,量少价高,至今未能广泛使用。
However, because of levulinic acid ester is mainly composed of glucose or petroleum-based products into production, less price is high, have been unable to widespread use.
单宁酶可水解没食子酸单宁中的酯键和缩酚羧键,生成没食子酸和葡萄糖。
Tannase hydrolyses the ester bonds and depside bonds in gallic acid tannins to release gallic acid and glucose.
研究了葡萄糖月桂酸酯的酶法合成与分离测定。
The lauroyl glucose ester was synthesized in acetone with the Novozym 435 lipase as catalyst.
结论细菌内毒素检查法可用于单硝酸异山梨酯葡萄糖注射液的热原检查。
Conclusion Bacterial endotoxin test could be used in Isosorbide Mononitrate and Glucose injection.
结果单硝酸异山梨酯葡萄糖注射液2倍稀释后无干扰作用。
Results Isosorbide Mononitrate and Glucose injection did not interfere with limulus agent in two-fold diluted concentrations.
评吸结果表明,合成的葡萄糖四异戊酸酯能赋予混合型卷烟烟气以异戊酸的特征香气。
The sensory evaluation showed that the synthesized compound imparted a characteristic flavor of isovaleric acid to the smoke of blended type cigarette.
本文利用硅酸乙酯(TEOS)的溶胶凝胶过程对葡萄糖氧化酶(GOD)进行了固定,并制备了不同载体下的GOD酶柱。
In this paper, GOD was immobilized in the course of gelation process of the sol of TEOS, and immobilized GOD columns were easily prepared with different carriers using this system.
在临床上,实验室检测指标都没有显著改变,包括血色素,“甚至葡萄糖-6-磷酸酯脱氢酶缺失患者也没有明显改变。”著者报道。
There were no clinically significant changes in laboratory parameters, including hemoglobin, "een among glucose-6-phosphate dehydrogenase-deficient patients, " the authors write.
以乙二胺的醋酸盐作皂化剂,由1, 2,3,4, 6-葡萄糖五异戊酸酯合成了2,3,4,6-葡萄糖四异戊酸酯,用1H NMR、高分辨质谱、 硅烷化衍生质谱进行了表征,并进行了卷烟加香试验。
The 2,3,4,6-O-tetraisovaleryl glucose was synthesized with ethylenediamine acetate as a saponifier, characterized by1HNMR, HRMS and silylanized derivation MS, and applied in cigarettes as a flavorant.
以乙二胺的醋酸盐作皂化剂,由1, 2,3,4, 6-葡萄糖五异戊酸酯合成了2,3,4,6-葡萄糖四异戊酸酯,用1H NMR、高分辨质谱、 硅烷化衍生质谱进行了表征,并进行了卷烟加香试验。
The 2,3,4,6-O-tetraisovaleryl glucose was synthesized with ethylenediamine acetate as a saponifier, characterized by1HNMR, HRMS and silylanized derivation MS, and applied in cigarettes as a flavorant.
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