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在微波辐射条件下合成了系列C-2或N-3位含酯基的噻唑烷-4-酮衍生物,经水解或还原得到含亲水基如羧基、羟基的衍生物.化合物通过艾滋病毒逆转酶(HIV-RT)试剂盒(比色法)评价了其酶抑制活性.活性结果表明,部分化合物如8a,8b,9a,9b和14c能有效地抑制HIV逆转酶的活性.其中在N-3嘧啶环5位连有乙基的化合物8a和9a的活性最高,IC50值分别为3.02和3.06μmol·L-1.构效关系表明亲水性基团的引入对HIV逆转录酶抑制活性影响不大,而N-3位嘧啶基更有利于噻唑烷-4-酮抗HIV活性. 相似文献
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以2-苄硫基-5-甲基-7-羟基-1,2,4-三唑并[1,5-a]嘧啶为原料,经醚化、肼解、成盐、关环和席夫碱反应合成了20个新型的含1,2,4-三唑-5-硫酮席夫碱的1,2,4-三唑并[1,5-a]嘧啶类化合物,通过IR,1H NMR,MS和元素分析对所合成的化合物进行了结构表征.初步生物活性测试结果表明,部分化合物表现出一定的抑菌或较好的抗烟草花叶病毒(TMV)活性.在500μg/mL浓度下,化合物6b,6f和6p对TMV的抑制率分别为41%,43%和40%. 相似文献
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为了寻找高效、低毒的新型农用化学品,以2-氯-5-(氯甲基)噻唑为起始原料,设计合成了一系列新型含1,2,3-三唑和噻唑杂环的肟醚硫代磷酸酯衍生物,采用IR, 1H NMR, 31P NMR, MS和元素分析对其进行了结构表征。初步生物活性测试结果表明:该系列化合物具有中等程度的杀虫和杀菌活性。 相似文献
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新型3-萘基-1,3-噻唑烷-4-酮衍生物的微波促进合成及其抗菌活性研究 总被引:2,自引:1,他引:2
利用微波促进的多组分一锅法, 在封管条件下, 以萘胺、芳醛和巯基乙酸为原料, 4-二甲氨基吡啶(DMAP)/N,N’-二环已基碳二亚胺(DCC)为催化剂, 合成了系列新的噻唑烷酮衍生物, 该反应具有时间短、操作简便等优点. 目标化合物通过IR, NMR, MS和元素分析等方法确定结构. 初步测试了化合物对丁香假单胞杆菌黄瓜角斑病菌致病变种、番茄灰霉病菌和黄瓜白粉病菌抑制活性, 结果表明: 部分化合物对黄瓜白粉病菌有显著抑制作用, 但对前两种植物病菌抑制效果不明显. 相似文献
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苯并咪唑类化合物在杀菌剂研究中已取得可喜的结果,如苯菌灵、多菌灵,具有生物活性的酰基苯并咪唑类化合物已见报道,Richmond等研究发现保护性杀菌剂克菌丹在植物体内被代谢成具有内吸活性的含酰基硫代噻唑烷酮的氨基酸,杀菌和杀线虫剂N-244的结 相似文献
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无溶剂条件下微波辐射合成2-氨基噻唑衍生物 总被引:8,自引:0,他引:8
在无溶剂条件下, 用微波辐射法以碘、酮和硫脲为原料合成了9个2-氨基噻唑衍生物. 利用正交法优化了微波促进此类环化反应的最佳条件, 提出了微波条件下碘催化环化合成2-氨基噻唑衍生物可能的反应机理. 相似文献
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TANG Xiaobin LI Zhenghui LI Yonghong LIU Wei YU Peng LI Lixin GUO Yu YANG Cheng 《高等学校化学研究》2015,31(1):71-77
A series of novel saccharin derivatives containing 1,2,3-triazole moiety was synthesized in satisfactory yields. The structures of all the compounds were elucidated and confirmed by Fourier transform infrared(FTIR) spectroscopy, 1H and 13C nuclear magnetic resonance(1H NMR, 13C NMR) spectroscopy, and high resolution mass spectrometry(HRMS). The bioassays indicated that most of the title compounds displayed some extent herbicidal activities at 100 μg/mL. 相似文献
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A feasible approach to synthesize 1,5-diaryl-4-pyridyl-1,2,3-triaozle via a sequential route from 2-alkynyl pyridine was developed. In this work, KOH was identified as a crucial base to promote the Pd-catalyzed arylation step. Compared to the reported methods, this protocol largely improved the reaction efficiency with overall excellent yield and good functional group tolerance. 相似文献
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XULiang-zhong JIANFang-fang NIUShu-yan JIANGZhi-guo 《高等学校化学研究》2004,20(5):558-561
Five novel triazole compounds containing group 1,3-dioxolane were designed and synthesized by taking difenoconazole as the start compound and changing diphenyl ether for benzyl phenyl ether. Their structure swere confirmed by elemental analyses, ^1H NMR and IR spectra. The single crystal structure of 2-[-4-(2,4-dichlorophenylmethoxy] phenyl-2-(1,2,4-triazol-l-yl ) methane-I, 3-dioxolane was determined by means of X-ray diffraction. The preliminary bioassays showed that the synthesized compounds exhibited some activities of fungicides and plant growth regulators. 相似文献
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1, 2, 3-三氮唑衍生物的合成 总被引:1,自引:0,他引:1
随着1,2,3-三氮唑衍生物在医药、农药、材料等领域的广泛应用,其合成引起了广大研究者的关注。本文阐述了1,2,3-三氮唑衍生物合成的发展历史,着重综述了近十年来1,2,3-三氮唑衍生物合成的发展情况,主要包括铜催化的有机叠氮化合物与末端炔的1,3-偶极环加成反应合成1,4-二取代-1,2,3-三氮唑、钌催化的有机叠氮化合物与末端炔反应合成1,5-二取代-1,2,3-三氮唑、有机催化剂法、金属炔化物及活化炔参与法等合成1,2,3-三氮唑衍生物的一些新成果。文章还介绍了一些合成方法在医药领域的应用,并对重要的反应机理作了分析,最后对该类化合物的合成作了总结并展望了未来发展方向。 相似文献
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LI Yuedong MAO Wutao FAN Zhijin LI Juanjuan FANG Zhen JI Xiaotian ZONG Guangning LI Fengyun 《高等学校化学研究》2014,30(3):390-395
A series of novel 1,2,4-triazole derivatives containing 1,2,3-thiadiazole ring was designed and synthesized. Their structures were confirmed by IR, 1^H NMR, high resolution mass spectrometer(HRMS) and electrospray ionization-mass spectromcter(ESI-MS) combined with melting points and elemental analysis. Preliminary bioassays indi- cate that these compounds exhibit good insecticidal activity against Aphis laburni at 100 μg/mL, especially compound 6b shows mortality of no less than 95%. Most of the compounds show good activities against tobacco mosaic virus(TMV) with different modes in vivo at 100 μg/mL. Compound 6d standed out, showing a good insecticidal activity and very high induction effects against TMV in vivo. Collectively, our data demonstrate a new strategy for insect and virus control. 相似文献
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XU Liang-zhong ZHANG Shu-sheng ** GAO Hong-rong JIAO Kui . College of Chemistry Chemical Engineering Ocean University of China Qingdao P. R. China . Colloge of Chemistry Molecule Engineering Qingdao University of Science Technology Qingdao P. R. China 《高等学校化学研究》2003,19(4):437-441
IntroductionAs an important type of fungicides,triazolecompounds are highly efficient,low poisonous andinward absorbents[1— 4] .At present,the studies ontriazole derivatives have mainly been concentratedon the compounds with triazole group as the onlyactive group.The report of triazloe compoundsthat contain both a triazole group and other activegroups in a single molecule has rarely been found.Some pyrimidines have been used as high efficientand low poisonous fungicides[5] in control of pow-d… 相似文献
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Synthesis and biological evaluation of novel 1,2,4-triazole containing 1,2,3-thiadiazole derivatives
Yue-Dong Li Wu-Tao Mao Zhi-Jin Fan Juan-Juan Li Zhen Fang Xiao-Tian Ji Xue-Wen Hua Guang-Ning Zong Feng-Yun Li Chao-Lun Liu Jian-Hua Yu 《中国化学快报》2013,24(12):1134-1136
A series of novel 1,2,4-triazoles containing 1,2,3-thiadiazole derivatives were designed and synthesized. Their structures were confirmed by melting points, IR, 1H NMR, and elemental analysis and ESI-MS or HRMS. Preliminary bioassays indicated that these compounds exhibited very good insecticidal activity against Aphis laburni at 100 μg/mL, with mortality no less than 95%. Compounds 6a, 6c, 6f, 61 showed higher curative activity against TMV and compound 6h showed a higher induction effects against TMV in vivo at 100 μg/mL. Collectively, our data demonstrate a new strategy for control of insects and viruses. 相似文献
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从邻苯二胺出发,合成了2-腈甲基苯并咪唑,对2-腈甲基苯并咪唑与醛的Knoevenagel缩合反应催化剂进行了优选,研究表明,吗啡啉/乙酸是催化2-腈甲基苯并咪唑与芳香醛Knoevenagel缩合反应的良好催化剂;在吗啡啉/乙酸催化下,合成了新型的双苯并咪唑丙烯腈衍生物和3-吲哚-2-苯并咪唑丙烯腈衍生物;将2-腈甲基苯并咪唑经过碱性水解,酯化,得到苯并咪唑乙酸乙酯,后者经过次序Knoevenagel缩合/分子内酯交换高产率地得到了新型的苯并咪唑取代的香豆素衍生物。 相似文献
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XULiang-zhong ZHANGShu-sheng CHENXiao JIAOKui 《高等学校化学研究》2003,19(3):306-309
Sixteen new triazole organic phosphorus compounds were synthesized. Their structures were confirmed with IR, IH NMR, elemental analysis and MS. The primary biological tests show that the titled compounds have the fungicidal activities, which are influenced by R groups and the substituents attached to the P atom. 相似文献
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5-(2-苯基-1,2,3-三唑基)-3-芳基吡唑啉衍生物的合成及其荧光性能 总被引:8,自引:0,他引:8
以2-苯基-1, 2, 3-三唑基-4-甲醛为原料, 与苯乙酮[或取代苯乙酮(1a~1d)]发生羟醛缩合, 生成相应的查尔酮(2a~2d), 再与不同的肼反应, 合成了12种新的5位含2-苯基-1, 2, 3-三唑基的吡唑啉衍生物3a~3d, 4a~4d, 5a~5d. 化合物的结构经元素分析、 IR光谱和1 H NMR谱确认, 并测定了化合物的荧光光谱. 结果显示所合成的目标化合物有荧光, 是一类新型的荧光化合物. 相似文献