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- β-aminoacrylic acid ester derivative β-胺基丙烯酸酯衍生物
- Study on enzymatic synthesis of ester derivatives of nucleosides in recent years was reviewed in the present work. 本文就近年来核苷类化合物酯类衍生物酶法合成的研究进行综述。
- Objective To study the absorption of 5'-valyl-ara-C hydrochloride, a 5'-O-L-valyl ester derivatives of cytarabine (ara-C). 摘要目的研究阿糖胞苷的5'-缬氨酸酯前体药物在大鼠小肠内的吸收情况。
- Ester derivatives of nucleosides are of importance in functional polymer materials,oligonucleotides and pharmaceutical chemistry. 核苷类化合物酯类衍生物在功能高分子材料、寡聚核苷酸和医药化学等领域具有重要的应用价值。
- Ethyl pyruvate (EP), a stable aliphatic ester derived from pyruvic acid, was first described as a pharmacological inhibitor of HMGB1 secretion. 丙酮酸乙酯（EP）是一种来自丙酮酸的稳定脂肪酸，第一次被作为HMGB1分泌物的药物性抑制剂。
- Eight new gibberellic acid ester derivatives were synthesized through two meth-ods and their structures were determined by 1HNMR、IR、MS. 摘要本文通过两种方法以极高的收率合成了8种新的赤霉酸酯衍生物，并通过1HNMR、IR、MS对其进行了结构鉴定。
- Several hydroxyl substituted 4,5 ethylenedithio 1,3 dithiole 2 one and thiones and their ester derivatives were synthesised.Their 1H NMR and MS data were given. 合成了文题化合物及它们的酯化物，给出了它们的核磁共振氢谱和质谱。
- Guided by prodrug strategy, 20-O-linked succinate-based camptothecin ester derivatives were firstly synthesized and their structures were characterized by LC/MS, NMR and element analysis. 我们采取喜树碱前药设计的思路，首次合成了一系列20位酯化的琥珀酸喜树碱衍生物，利用各种手段确证了化合物的结构。
- a salt or ester derived from silicic acid. 从硅酸衍生而来的盐或酯。
- An organic derivative, such as coal or petroleum. 有机衍生物一种有机衍生物，如煤或石油
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- a liquid ester derived from amyl alcohol 一种液态酯，由戊醇衍生而来
- Synthesis of Gibberellic Acid Ester Derivatives 赤霉酸酯衍生物的合成
- 8. a salt or ester derived from silicic acid. 从硅酸衍生而来的盐或酯。
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- a liquid ester derived from amyl alcohol; has the odor of bananas. 一种液态酯，由戊醇衍生而来，带香蕉味。
- A mark used as a superscript to indicate the first derivative of a variable. 撇号置于右上角的符号，用以标明变量的第一个导数
- The derivative of the step is the impulse. 阶梯的导数就是脉冲。
- A derivative is defined by a limiting process. 导数是通过一个极限过程加以规定的。
- They spoke a derivative of the Malay language. 他们说一种从马来语派生的语言。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
