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- 7-amino-3-desacetoxy cephalosporanic acid 7-氨基-3-去乙酰氧基头孢烷酸
- amino deacetoxy cephalosporanic acid (7-ADCA) is a intermediate for cephalosporin, it is prepared from penicillin, via oxidation reaction, ring enlargement and rearrangement reaction and enzymolysis. 氨基去乙酰氧基头孢烷酸(7-ADCA)是头孢菌素合成的重要中间体,一般以青霉素为原料,经氧化,扩环-重排,裂解三步反应制备。
- Keywords Cefuroxime;7-anmino cephalosporanic acid;hydrolysis;acylation; 头孢呋辛;7-氨基头孢烷酸;水解;酰化;
- The mutant DNA miscoded a single amino acid. 突变体脱氧核糖核酸误编了一个氨基酸密码。
- This chemical is an amino acid called L-theanine. 这种化学物质是一种叫做L-茶氨酸的氨基酸。
- An amino - acid derivative of galactose. 半乳糖胺半乳糖的一种氨基酸衍生物
- Are Intravenous Amino Acid Solutions Unbalanced? 静脉氨基酸营养液是否不平衡?
- Kx Amino Trimethylene Phosphonic Acid. 氨基三亚甲基膦酸钾。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- An essential amino acid, C5H11NO2. 缬氨酸一种基本的氨基酸，
- Coding for the same amino acid as another codon. 为作为另一个密码子的同样的氨基酸编密码的.
- Ingredient: Almond and amino acid etc. 主要成份:杏仁、氨基酸、复合维他命、乳清蛋白。
- cephalosporanic acid 头孢烷酸
- Ingredient: Honey and amino acid etc. 主要成份：蜂蜜、氨基酸、丝蛋白、角鲨烷、硅脂。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- Amino acid analysis of ACE inhibitory peptides. 血管紧张素转换酶抑制肽的氨基酸分析。
- Theanine is a peculiar amino acid in green tea. 茶氨酸是绿茶中特有的一种氨基酸。
