We select the acetoxy group to protect the hydroxy group from a great number of the protection methods for the hydroxy group.
在众多的羟基保护方法中，选择了乙酰氧基对其进行了保护。
Performance and Application 1, Used as modifier of coatings and resins containing hydroxy group, amino-group and hydrosulfide group;
性能及用途1、可作含羟基、氨基及巯基的有机树脂及涂料的改性剂；
Step II: Ganciclovir with a protected 2-amino group and one aliphatic hydroxy group protected is subjected to de-protection of the amino group.
第二步：2-氨基和一个脂链羟基被保护的更昔洛韦要脱除氨基保护。
Dinitrations occurred at two ortho-positions or both ortho- and para-positions to the hydroxy group with longer reaction time than mononitration.
随着反应时间的延长，有羟基邻位和对位双硝基化以及羟基两个邻位双硝基化产物生成。
As an effective protection for hydroxy group in alcohols and phenols, the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.
从四氢吡喃醚的合成及脱除方法介绍了二氢吡喃这种羟基保护试剂近十几年来在有机合成中的应用。
Introduction of 11-hydroxy group into steroids by chemical methods, such as keto-reduction, halogenation-dehalogenation, borane-hydrogen peroxide and peroxidation-reduction are reviewed.
综述了在甾体化合物11 -位引入羟基的各种化学合成方法，主要包括酮基还原法、上脱卤素法、硼烷双氧水法、过氧化-还原法等。
Moreover, catalytic hydrogenation can be used to the reduction of a variety of organic compounds, such as nitro, carbonyl, amino, aromatic and heteroaromatic compound, hydroxy group and carboxy group.
此外，它除了还原双键以外可以用来还原各种不同的有机化合物，如：硝基、羰基、氨基、芳香族及杂环化合物、羟基、羧基。
They contain one or more functional group such as amide, hydroxy, or carboxy.
它们含有一个或多个功能团如：氨基、羟基、羧基。
Since the nucleic acids contain phosphonic group, basic group, desoxyribose hydroxy and double spiral species in nucleic acids, nucleic acids form easy multicomponent complexes with metal complex.
由于核酸含磷酸基团、碱基、脱氧核糖羟基以及双螺旋结构，使金属络合物容易在这些位置发生多元络合反应。
In addition, other building blocks such as 4-hydroxy-quinoline, quinoline, and ferrocene were incorporated into group A for our combinatory library design, alternativly.
此外，在保证重要药效特征的基础上，还选择了4-羟基-喹啉、喹啉和二茂铁类作为芳环A端的构建单元。
Benzimidazolyl group exhibits catalytic activity in the way as intramolecular general-base catalysis in the hydrolysis of 3-(2'-benzimidazolyl)-3-hydroxy propionate.
在3-（2＇-苯并咪唑基）-3-羟基丙酸乙酯水解过程中，苯并咪唑基以分子内一般碱催化方式参与催化酯的水解反应。
As explained in Chapter 1, the urethane group is the product of the reaction of a hydroxy compound with an isocyanate group (reaction 4.8).
正如第1章解释，聚氨酯组是羟基化合物与异氰酸酯组的反应(反应4.8)的产品。
The thermodynamic parameters of carboxylic group and titrable phenolic hydroxyl group of humic acid are similar to that of simple hydroxy-benzoic acid.
腐植酸的羧基和可滴定的酚羟基在热力学性质上同简单的羟基苯羧酸相似。
Result The hydroxy proline and hexosamine were measured higher in contact group than control group.
结果接触组血清中羟脯氨酸、氨基已糖的含量高于对照组，统计学分析差异有显著性。
Many kinds of chemicals were made from castor oil. There production techniques were summarized and classified according to the reactions of hydroxy, ester group and olefinic bond.
从蓖麻油分子中羟基、酯基、烯键等官能团的化学反应出发，对种类繁多的蓖麻油化学品加工技术进行综述归类。
Many kinds of chemicals were made from castor oil. There production techniques were summarized and classified according to the reactions of hydroxy, ester group and olefinic bond.
从蓖麻油分子中羟基、酯基、烯键等官能团的化学反应出发，对种类繁多的蓖麻油化学品加工技术进行综述归类。
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