以乙酰乙酸叔丁酯为原料，经过肟化、醚化、氯代酯解反应合成了头孢克肟开环侧链酸。
Cefixime open side chain acid was prepared by oximation, etherification, chlorination, ester decomposition using t-butyl acetoacetate as starting material.
另外，结构中的某些在主体结构外的氨基酸侧链上的蛋白质只是近似的和细节缺失的。
In addition, the positions of some of the proteins within the structure are approximate and detail is lacking on the amino-acid side chains hanging off the main structure.
研究玉米淀粉接枝聚丙烯酸酯共聚物的各级结构，主要探讨去除均聚物和玉米淀粉侧链的方法。
Through the study on every step structure of corn starch graft polyacrylate copolymer, the methods of removing homopolymer and corn starch side chain are discussed.
本文合成了侧链上带有酰胺基、羧基、酯基和羟基的水溶性聚丙烯酸树脂。
A water soluble acrylic coatings with amide, carboxyl, ester and hydroxyl group on side-chain have been synthesized.
电子显微照片和dsc均表明明胶和聚丙烯酸丁酯侧链处于相分离状态。
The electron micrograph and DSC analysis showed that the grafted chain (PBA) and backbone gelatin were in separated phases.
依据液晶分子结构理论，选择联苯基作为介晶基元，六亚甲基为柔性间隔基，合成了一种丙烯酸酯侧链型液晶高分子。
Based on the liquid crystalline polymer theory, a kind of polyacrylate was synthesized by choosing biphenyl group as rigid nucleus of mesogenic unit and hexylidene as flexible spacing group.
用正电子湮没寿命谱研究了手性丙烯酸酯侧链液晶共聚物分子主链与介晶基元侧链的运动行为及相互作用。
Motional behaviour and interaction between main chain and side chain of mesogenic moiety of liquid crystalline copolymer were studied by positron annihilation lifetime spectroscopy.
多肽链被蛋白质中氨基酸残基侧链所屏蔽而妨碍有关振动的有效增强。
The peptide groups of proteins are screened by the side-chains of amino acid residues which impede the efficient enhancement of corresponding vibrations.
叶绿酸是通过水解叶绿素去除疏水性叶绿植醇侧链而获得的一种水溶性的衍生物。
Chlorophyllin is a water soluble derivative, which is obtained by hydrolyzing chlorophyll to remove phytyl alcohol.
按照已有的酶活性中心的金属-氨基酸侧链配位和空间关系，设计合成多齿配体，并使配体和金属离子通过配位作用形成配合物。
They are designed according to the special relations and coordination of metal-amino acid side chain in the active centre in known enzymes.
淀粉丁二酸单酯用作水泥分散剂时，其分散机理也主要来自空间位阻作用，且较长的极性侧链对空间位阻效应具有一定的贡献。
The dispersing ability of SSHE as cement dispersant also came from steric hindrance effect and long side chain contributed to steric hindrance in a certain degree.
将柠檬酸作为侧基引入到聚羧酸大分子链中，合成了一种新型聚羧酸系高效减水剂。
A new polycarboxylic acid type superplasticizer was synthesized by introducing citric acid to polycarboxylic acid molecule as branch in order to solve concretes slump-loss, bleeding and segregation.
蚕丝富含亲水侧链氨基酸，使得蚕丝具有极佳的吸湿功能。
Rich in hydrophilic amino acid side chains of silk to make silk has excellent moisture absorption function.
考察了不同缩合试剂和反应时间对苯丙氨酸成肽反应的影响，并初步探讨了无机磷试剂辅助下芳香侧链氨基酸的成肽机理。
The effects of the condensation reagents and the reaction time on the self-assembly of Phe into peptides were also examined and their reaction mechanisms were preliminary studied.
又称支链氨基酸。指氨基酸侧链上有分支的氨基酸如异亮氨基酸、亮氨酸和缬氨酸，它们都是人体必需氨基酸。
Branched-chain amino acids as essential amino acids, which is not only the raw materials for protein synthesis but also has special physiological and biological function.
支链氨基酸有时用来指非线性的侧链。
BCAA is sometimes used to refer to the having side-chains that are non-linear.
支链氨基酸有时用来指非线性的侧链。
BCAA is sometimes used to refer to the having side-chains that are non-linear.
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