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- The E configuration of erythromycin oxime was found to transfer easily to the Z configuration to equilibrium under the condition of alkalescence. 碱性条件下红霉素肟容易由E构型转化为Z构型从而达到平衡。
- The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate. 研究了以无水碳酸钠为催化剂,红霉素肟与甲氧基乙氧基氯甲醚(MEMC)为原料,一步合成罗红霉素的实验过程。
- The main impurity involved in the synthesis of erythromycin oxime was separated and purified, which was identified as the very compound formed in the acidic hydrolysis of erythromycin A, i.e erythromycin A 8,9 dehydro 6,9 hemiketal. 分离和鉴定了在合成红霉素肟的过程中产生的一种主要杂质 ;通过 IR;UV;MS;1 H NMR和 1 3C NMR确证它和红霉素在酸性水解时生成的红霉素 A 8;9-脱水 - 6;9-半缩酮为同一化合物 .
- Separation and Identification of the Impurity in Erythromycin Oxime 红霉素肟中杂质的纯化及鉴定
- Separation and Identification of the Main Impurity in Erythromycin Oxime 红霉素肟主杂质的分离和鉴定
- Keywords Erythromycin oxime;Erythromycin 6;9-9;12-spiroketal;Erythromycin; 关键词红霉素肟;红霉素6;9-9;12-螺缩酮;红霉素;
- The Configurational Isomerization of Erythromycin Oxime During Beckmann Rearrangement 红霉素肟贝克曼重排反应中的构型异构化
- Study on Reactivity of Etherification Protection for Hydroxyl in Erythromycin Oxime 红霉素肟的醚化反应活性研究
- Keywords diisopropoxy cyclohexane;1;1 - diethoxy cyclohexane;1 - dimethoxy cyclohexane;erythromycin oxime; 二异丙氧基环己烷;1-二乙氧基环己烷;1-二甲氧基环己烷;红霉素肟;
- Keywords erythromycin;erythromycin oxime;azithromycin;Beckmann rearrangement;configurational isomerization; 红霉素;红霉素肟;阿奇霉素;贝克曼重排;构型异构化;
- Keywords erythromycin oxime;etherification protection;1;1 diisopropyloxy cyclohexane;1 diethoxy cyclohexane;1 dimethoxy cyclohexane; 关键词红霉素肟;醚化保护;1;1-二异丙氧基环己烷;1-二乙氧基环己烷;1-二甲氧基环己烷;
- erythromycin oxime 红霉素肟
- The yield of oxime is 92%,and the purity 98%. 确定了合成乙醛肟的最佳工艺条件,产品收率92%25,产品纯度98%25。
- Fulminic acid can be regarded as the simplest oxime. 雷酸可以看作是最简单的肟。
- The doctor prescribed two boxes of erythromycin to cure him. 医生给他开了两盒红霉素来治疗他的病。
- The erythromycin drug resistant rate with erm genes in MRCNS is 81.8%. MRCNS菌获得erm基因的红霉素耐药率为 81.;8%25。
- Specific examples include erythromycin and enterobactin biosynthesis. 特别举出包含红黴素与肠菌素生合成等例子。
- Others are sources of antibiotics such as streptomycin and erythromycin. 还有一些细菌是链霉素或红霉素等抗生素的来源。
- Result: MEBO is superior to erythromycin ointment and povidone iodine (P<0.01). 结果:激光联合MEBO外用疗效优于激光合并红黴素软膏或活力碘(p<0.;01)。
- Objective To optimize the formulation of enteric coating of erythromycin. 目的优化红霉素肠溶薄膜包衣配方。