查询词典 carboxylic acid
- 与 carboxylic acid 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Novel sodium 2-2-(alkylaryloxy-alkylamidoethanesulfonates (m+nAr-T, m, n: carbon numbers; Ar: aromatic nucleus; T: taurine) with high purity were synthesized through bromization, esterification, Fries rearrangement, Pd-catalyzed hydrogenation, Williamson reaction, and acylation, et al, using carboxylic acid, phenol and taurine as starting materials. The structures and purities were characterized.
以羧酸、苯酚和牛磺酸为原料,通过溴代反应、酯化反应、Fries重排反应、催化氢化反应、Williamson反应以及催化酰胺化反应等过程,首次成功合成并表征了系列结构明确的高纯度N-酰基牛磺酸钠(m+nAr-T,m、n为烷基链碳数,Ar为芳环,T表示taurine)。
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According to the result, we believed that the reason resulted in the low sensitivity was that the marker residue compound MQCA structure has changed after conjugated with protein and the antibody induced by the conjugation could not recognize the free MQCA in the ci-ELISA. Therefore we designed some hapten which could reserve the marker residue structural speciality mostly. After synthesis route selection and optimum, the hapten 7-Hydroxymethyl-3-methyl-quinoxaline-2-carboxylic acid was synthesized, used 4-methyl-2-nitroaniline as the start material via six steps, such as oxidation cyclization, bromize reaction, hydrolysis, Beirut reaction, reduction, hydrolysis. This work established basis for producing the high affinity antibody and developing the sensitive ELISA residue detection method.
本论文认为导致ELISA检测灵敏度较低的原因,是残留标示物和蛋白偶联后的特征结构发生改变,诱导产生的抗体不能够对游离MQCA很好的识别,因此,本论文设计了能够最大化保留MQCA结构特征的系列半抗原结构,并对其合成路线进行了筛选和优化,最终以对甲基邻硝基苯胺为起始原料,经氧化环化、溴代、水解、Beirut缩合、还原、水解六步反应制备含羟甲基结构的MQCA衍生物7-羟基甲基-3-甲基-喹噁啉-2-羧酸,为制备对游离残留标示物高亲和力的抗体,高灵敏度的ELISA残留检测方法的建立奠定基础。
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A process for the carbonylation of allylic butenyl ether (for example, methyl crotyl ether, 3-methoxybutene-1 and mixtures thereof) or mixture of butadiene and alcohol and production of beta-gamma unsaturated carboxylic acid esters (for example, methyl-3-pentenoate) utilizing a rhodium-containing catalyst for example, dicarbonylacetylacetonate rhodium(I or the like promoted with an iodide-containing compound (for example, HI, AlI3, SnI4, TiI4, CrI3, and CoI2 or the like).
一种将烯丙型丁烯基醚(如甲基巴豆基醚、3-甲氧基丁烯-1及其混合物)或者丁二烯与醇的混合物羰基化的方法,以及由含碘化物化合物(如HI、AlI3、SnI4、TiI4、CrI3和CoI2或等效物)促进,用含铑催化剂如二羰基乙酰丙酮酸铑(I或其等效物制备β-γ不饱和羧酸酯(如甲基-3-戊烯酸酯)的方法。
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The present invention relates to a novel process for converting the intermediate in the synthesis of atorvastatin having the following formula or atorvastatin lactose into the non-crystalline atorvastatin calcium: wherein A denotes a common protection group or separate protection groups for the dihydroxy group and B denotes a carboxylic acid protection group.
本发明涉及一种将具有下式的阿托伐他汀合成中的中间体或阿托伐他汀乳糖转化为非结晶阿托伐他汀钙的新方法:其中A表示二羟基的共同保护基或单独保护基,而B表示羧酸保护基。
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The anion UV cured water soluble prepolymer was synthesized with toluene diisocyanate, dihydroxy compound, dihydroxyalkyl carboxylic acid, and polyurethane acrylate. The structure of the prepolymer was characterized by infrared spectroscopy.
采用甲苯二异氰酸酯、聚酯二元醇、二羟甲基丙酸和丙烯酸羟乙酯合成水性阴离子型聚氨酯丙烯酸酯,用傅立叶红外光谱证实了该聚合物的结构。
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The results indicate that there are strong dipole or ionic pairs interactions between carboxylic acid or anhydride and dimethylamino groups in reactive blends, so reactive compatibilizers are formed at the interphase, which can reduce the interfacial tension and improve interfacial adhesion between the component polymers, meanwhile the morphologies of the reactive blends become more fine and uniform, the dispersed domain size decreases remarkable.
研究结果表明:在PS/PE-g-MAH/St-Co-DMA和PS/EPDM-g-DMA/St-Co-MAH反应性共混体系中,反应性聚合物所含的酸酐基团与叔胺基团存在离子对间的相互作用;在PS/Surlyn/St-Co-DMA和PS/EPDM/Surlyn/St-Co-DMA反应性共混体系中,反应性聚合物所含的羧酸基团与叔胺基团间存在偶极相互作用。
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FLUORENE CARBOXYLIC ACID ESTERS, METHODS FOR THE PRODUCTION THEREOF, AND
芴羧酸酯,其制备方法及其制备药物的用途
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To test this hypothesis, we measured the effect of IV infusion of the NMDA blockers dizocilpine (MK-801) and-4-(3-phosphonopropyl) piperazine-2-carboxylic acid to decrease the MAC (the minimum alveolar concentration of anesthetic that prevents movement in 50% of subjects given a noxious stimulation) of 8 conventional anesthetics (cyclopropane, desflurane, enflurane, halothane, isoflurane, nitrous oxide, sevoflurane, and xenon) and 8 aromatic compounds (benzene, fluorobenzene, o-difluorobenzene, p-difluorobenzene, 1,2,4-trifluorobenzene, 1,3,5-trifluorobenzene, pentafluorobenzene, and hexafluorobenzene) and, for comparison, etomidate.
为了验证这个假说,我们检测静脉注射 NMDA 阻滞剂 MK-801和 CPP 来降低8种常规吸入麻醉药(环丙烷,地氟醚,安氟醚,氟烷,异氟醚,一氧化二氮,七氟醚和氙)和8种芳香族化合物(苯,氟苯,邻二氟苯,对二氟苯, 1,2,4-三氟苯, 1,3,5-三氟苯,五氟苯和六氟苯的 MAC 值,依托咪酯作为对照组。
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Thus,α,β-unsaturated ketones were prepared by base-catalized aldol condensation between substituted arylaldehydes and acetones. Using iodosobenzene diacetate as oxidants, the resulting α,β-unsaturated ketones will be transformed to β,γ-unsaturated carboxylic acid esters.
以不同取代的芳香醛跟丙酮缩合后可以得到α,β-不饱和酮,再用iodosobenzene diacetate做氧化剂氧化,可以成左卤o到β,γ-不饱和碳酸酯类化合物。
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Although the peptides had different structures, they typically shared a handful of chemical features, such as phyenyl, hydroxyl, carboxylic acid, and isobutyl groups.
虽然说肽类具有不同的结构,但是他们都共同具有一些简单的化学特征,比如苯酰基,羟基,羧基以及异丁基团。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。