到了1897年，一种取自柳树的活性成分柳醇(水杨苷)的衍生合成物——乙酰水杨酸诞生了。
By 1897 a synthetic derivative (acetyl salicylic acid) of the plant's active ingredient (salicin) was created.
将母体染料的中位氯原子用氨基试剂亲核取代，衍生合成了五个中位仲胺七甲川菁染料。
Five derivative dyes from the parent dyes were obtained by similar nucleophilic substitution reaction in which five primary amines were employed as the nucleophilic reagent.
还必须认识到，许多重要的新生物产品仍将从现有生物分子衍生的模型化学合成。
It must also be appreciated that many important new bio-products will still be synthesized chemically from models derived from existing biological molecules.
综述了这类二亚胺衍生物的合成、性质及应用研究进展。
The research of synthesis, properties and applications of these perylene diimide derivatives were reviewed.
目的是合成含2-5个碳的直链烷酸功能基的5-氟尿嘧啶衍生物。
The objective is to synthesize 5-fluorouracil derivatives containing 2-5 carbon alkanoic acid.
监管者应该承担起一个任务，即了解衍生品与合成证券，如果无法充分评估它们的系统性风险，就拒绝让它们被创造出来。
It will be the task of regulators to understand derivatives and synthetic securities and refuse to allow their creation if they cannot fully evaluate their systemic risks.
要求衍生品与合成证券进行登记简单而有效，但目前正在考虑的法案并没有纳入任何这类要求。
Requiring derivatives and synthetic securities to be registered would be simple and effective; yet the legislation currently under consideration contains no such requirement.
即使所有参与方都是专业投资者，衍生品与其它合成产品的使用也必须受到监管。
The use of derivatives and other synthetic instruments must be regulated even if all the parties are sophisticated investors.
1897年，这种植物中的有效成分的人工合成衍生物诞生了，于是阿司匹林变成了世界上应用最广泛的药品。
By 1897 a synthetic derivative (acetyl salicylic acid) of the plant's active ingredient (salicin) was created. This allowed aspirin to become the most widely used medicine in the world.
这清楚地展示了衍生品与合成证券，如何被用来无中生有地创造虚有价值。
This is a clear demonstration of how derivatives and synthetic securities have been used to create imaginary value out of thin air.
1897年，这种植物中的有效成分的人工合成衍生物诞生了。
By 1897 a synthetic derivative acetyl salicylic acid of the plant's active ingredient was created.
盘尼西林的半合成衍生物，在治疗由革兰氏阴性细菌的某些过敏性菌系，如假单胞菌和变形杆菌引起的感染方面有疗效。
A semisynthetic derivative of penicillin that is effective in the treatment of infections caused by certain susceptible strains of Gram-negative bacteria, such as Pseudomonas and Proteus.
以吗啉、三聚甲醛、二正丁胺为原料合成了一种吗啉衍生物，以异丁醛、氨水和硫为原料合成了一种噻唑衍生物。
A kind of morpholine derivative was synthesized by morpholine, trioxane and dibutylamines, and a thiazole derivative was synthesized by morpholine, ammonia and sulfur.
目的：合成卟啉衍生物。
亲核性芳香取代。多取代苯衍生物合成的策略。
Nucleophilic Aromatic Substitution. Strategies in the Synthesis of Multisubstituted Benzene Derivatives.
综述了1，4 桉树脑衍生物的各种合成方法，并讨论了它们的几何构型。参考文献30篇。
Various synthesis methods of 1,4-cineole derivatives were reviewed with 30 references and their geometric configurations were also discussed.
目的探讨取代苯基羧酸衍生物的合成及抑制血小板聚集作用。
Aim To explore the potential inhibition of platelet aggregation and synthesis of substituted benzene carboxylic acid derivatives.
这些反应在质子性醇溶剂与K_2CO_3组成的两相体系中进行更为方便，可用于吡咯烷及恶唑烷衍生物的合成。
The reactions are performed more conveniently in two phase systems consisted of alcoholic solvents and K_2CO_3, and may be adapted for the synthesis of pyrrolidine and oxazolidine derivatives.
目的介绍丹参素及其衍生物的化学合成方法。
Objective the methods of the synthesis of Danshensu and its derivatives are introduced.
方法以苯甲醛衍生物和苯乙酮为原料，弱碱碳酸钾为催化剂，水为溶剂，用相转移催化法合成查耳酮衍生物。
Methods Chalcone derivatives were synthesized from benzaldehyde derivatives and acetophenone by using weak alkali potassium carbonate as based catalyst in water via phase - transfer catalysis.
介绍了近年来2,4 -吡喃二酮衍生物的合成方法的研究进展。
The progress in the method of synthesis of 2, 4-dipyrones derivatives is summarized.
芳基肟胺菊酯类化合物和1，2，4-恶二唑衍生物的合成及其生物活性研究。
Studies on the Synthesis and Biological Activities of Aryl Amidoximyl Chrysanthemumates and 1,2,4-Oxadiazole Derivatives.
以丙烯酸及其衍生物为原料合成出了一种活性低聚物。
An active oligomer has been synthesized from acrylic acid and its derivatives.
对二茂铁磺酰胺衍生物的合成采用微波方法。
Ferrocenesulfonyl amines derivatives were synthesized by method of microwave irradiation.
在介绍三聚氰胺特点、三聚氰胺甲醛树脂改性、三聚氰胺衍生物合成的基础上，系统介绍相关应用。
The applications of melamine are described systematically on the basis of introducing the characteristics of melamine, the modification of melamine formaldehyde resin and melamine derivatives.
在介绍三聚氰胺特点、三聚氰胺甲醛树脂改性、三聚氰胺衍生物合成的基础上，系统介绍相关应用。
The applications of melamine are described systematically on the basis of introducing the characteristics of melamine, the modification of melamine formaldehyde resin and melamine derivatives.
应用推荐