本文通过检索文献，对苯脲类、酰基脲类、酰基硫脲类及四唑类化合物的生物活性作了系统的论述。
By retrieving concerned Literatures, this article discussed comprehensively the biological activities of phenyl ureas, acyl ureas and tetrazoles.
冰片基氯化镁与二苯酮的反应产物是二苯基冰片基甲醇、二苯基甲醇和它的氧化产物冰片烯。
The reaction products of bornyl magnesium chloride with diphenyl ketone are diphenyl bornyl carbinol, diphenyl carbinol and its corresponding oxidation product, bornylene.
丙烯腈和二乙烯基苯在聚丙烯上接校共聚，再经二甲苯率取，得笼形氰基树脂。
Acrylonitrile copolymerized with divinylbenzene on polypropylene and then extracted with xylene, the cage cyano resin was obtained.
本文用自由基捕捉剂与esr相结合的方法系统研究了各种取代苯胺与二苯酮光化夺氢反应中的活泼自由基。
Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.
结论3，5 二硝基苯甲酰氧基作为良好的糖端基离去基用于寡糖的合成，具有反应条件温和、收率较高、立体选择性好的特点。
Conclusion The 3, 5-dinitrobenzoyl group was found to be a good leaving group at the anomeric position and O-glucopyranosides and oligosaccharides were stereoselectively synthesized in good yield.
研究2-乙基-3-羟基-6-苯硫基-4（1H）-吡啶酮（HPP）对羟自由基和超氧阴离子自由基的影响。
The effects of 2-ethyl-3-hydroxy-6-phenylthio-4(1H)-pyridinone (HPP) on hydroxyl radical and superoxide anion radical scavenging activity was studied.
具有视黄酸衍生物类生物活性的四氢萘、苯并二氢吡喃、二氢苯并噻喃和1，2，3，4-四氢喹啉羧酸的芳基或杂芳基酰胺。
Aryl or heteroaryl amides of tetrahydronaphthalene, chroman, thiochroman and 1,2,3,4-tetrahydroquinoline carboxylic acids having retinoid-like biological activity.
目的：针对枸杞子的抗氧化作用，尝试建立基于清除有机自由基1，1-二苯基苦基苯肼（DPPH）的枸杞子质量控制方法。
Objective: To establish a quality control method for fructus lycii based on its antioxidation scavenging 1, 1-diphenyl-2- picrylhydrazyl (DPPH).
目的：针对枸杞子的抗氧化作用，尝试建立基于清除有机自由基1，1-二苯基苦基苯肼（DPPH）的枸杞子质量控制方法。
Objective: To establish a quality control method for fructus lycii based on its antioxidation scavenging 1, 1-diphenyl-2- picrylhydrazyl (DPPH).
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