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- Cefixime open side chain acid was prepared by oximation,etherification,chlorination,ester decomposition using t-butyl acetoacetate as starting material. 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。
- Keywords cefixime;side chain;synthesis;open side chain acid; 头孢克肟;侧链;合成;开环侧链酸;
- Side chain acid 侧链酸
- SIDE CHAIN DEGRADATION OF BS BY MYCOBACTERIUM SP. 分支杆菌降解大豆甾醇侧链的发酵研究。
- Research and Development of Side Chain. 侧链液晶高分子研究进展。
- High-shrinkage polyester chip and fibers can be produced by adding isophthalic acid (IPA) and neopentyl glycol ( DTG) with side chain into polyester. 在聚酯中添加间苯二甲酸(IPA)和具有侧链结构的新戊二醇(DTG),制成了高收缩聚酯切片及纤维。
- Some new polymeric colorants,polyfluro alkyl esters of polymeric phosphonitrilic acid with azo dyes in the side chain,were prepared in the presence of pyridine. 首次将偶氮染料和聚合膦腈酸多氟烷基取代酯相结合,合成了一类具有阻燃、疏水憎油等特性的功能聚合物。
- A side chain liquid crystalline polysiloxane with p( allyloxy) benzoxy p cyanophenyl as a monomer was synthesized. 研究以对-烯丙氧基苯甲酸对-氰基苯酚酯为单体的聚硅氧烷侧链液晶高分子的合成方法。
- Objective:To study the antifungal activity of triazole alcohols by introduction of cyclopropyl as side chain. 目的:研究具有环丙基结构的三唑醇类化合物的抗真菌活性。
- The amphiphilic ionomers based on (n-Butyl acrylate-acrylic acid) precursors with uniform polyoxyethylene (PEO) side chains were synthesized. 摘要用聚环氧乙烷大单体与丙烯酸丁酯、丙烯酸共聚,合成了三元接枝共聚物。
- There are two steps in synthesis of ceftazidine: synthesis of side chain ester and synthesis of bulk actives. 头孢他啶的合成分为侧链酯的合成和原料药的合成两部分。
- The population of trans-trans conformers for the i - and s-sequences increased and the side chain preferred to its e... 对丙酮样品的退火实验表明,在退火过程中能够发生间规链段的自聚集现象。
- It pointed out that the production of cynnematin's side chain intermediates has high risk and high profit. 指出头孢菌素侧链中间体的生产具有高风险、高回报,国内企业要追求高质量、低成本、注重技术创新与市场开发,开辟国际市场。
- Side chain fluorinated epoxy resin was synthesized by laurylfluo-enanthol and bisphenol A epoxy resin. 摘要采用十二氟庚醇与双酚A环氧树脂接枝合成了侧链含氟环氧树脂。
- The pyrrole ring of DU 122290 serves to increase the rigidity of the side chain present in sultopride. DU 122290的吡咯环的作用是提高了舒多普利的侧链的刚度。
- A modified method of free radical alkylation has been using for synthesizing of quinone derivatives with an alkyl side chain variation. 应用经过改进的自由基烷基化新方法,合成了一系列的具有长侧链结构的苯醌类化合物。
- As a result of these studies: the polarity of C 10 side chain was found to exert greater positive effect on G - than on G + bactria. 体外抑菌试验发现随着10位边链的极性增大,对革兰氏阴性(G-)菌的抗菌活性增强,而对革兰氏阳性(G+)菌活性则变化不大。
- H_2-Receptor antagonist nizatidine was prepared through the condensation of thiazolyl ring moiety with substituted cysteamine side chain in 52% yield. 以会聚合成法制备了H_2受体拮抗剂尼扎替丁。其中噻唑环的合成以二甲胺为原料,收率13.4%25;
- Results Chiral docetaxel C13 side chain was synthesized in 76% yield and 99% ee.The total yield of coupling and deprotecting reaction was 64%. 结果多烯紫杉醇手性C13侧链的4步反应总收率为76%25,光学产率为99%25,对接及去保护3步反应总收率为64%25。
- In this paper,the polyimides with ester group side chain and ether group side chain were synthesized from 4CAB/MDA/PMDA and 4AB/MDA/PMDA. 通过实验室自行合成的两种不同侧链的二胺单体,与4,4'-二胺基二苯甲烷和均苯四羧酸二酐聚合得到含有酯键型侧链和含有醚键型侧链结构的两种聚酰亚胺。