N-(1H-3-羧基-1,2,4-三唑-5-基)-N''''-芳氧乙酰基脲的合成及生物活性

通过5-氨基-1,2,4-三唑-3-羧酸与芳氧乙酰基异氰酸酯反应,合成了9个新的N-(1H-3-羧基-1,2,4-三唑-5-基)-N'-芳氧乙酰基脲,用核磁共振氢谱、红外光谱和元素分析证明了目标化合物的结构.室内的生物活性测定试验证明,部分目标化合物具有良好的植物生长调节活性.     

N-[5-(1-对氯苯氧乙基)-1,3,4-噻二唑-2-基]- N''''-芳氧乙酰基硫脲的合成与生物活性

通过2-氨基-5-(1-对氯苯氧乙基)-1,3,4-噻二唑与芳氧乙酰基异硫氰酸酯反应,合成了9种新的N-5-[(1-对氯苯氧乙基)-1,3,4-噻二唑-2-基]- N'-芳氧乙酰基硫脲,其结构经1H NMR, IR和元素分析确证.初步的生物活性测定结果表明,部分目标化合物具有良好的植物生长调节活性.     

N-（1H-3-羧基-1，2，4-三唑-5-基）-N′-芳氧乙酰基脲的合成及生物活性

通过5-氨基-1，2，4-三唑-3-羧酸与芳氧乙酰基异氰酸酯反应，合成了9个新的N-(1H-3-羧基-1，2，4-三唑-5-基)-N′-芳氧乙酰基脲，用核磁共振氢谱、红外光谱和元素分析证明了目标化合物的结构．室内的生物活性测定试验证明，部分目标化合物具有良好的植物生长调节活性．     

N-(5-对溴苯氧甲基-1,3,4-噻二唑-2-基)-N''''-芳氧乙酰基硫脲的合成与生物活性

2-氨基-5-对溴苯氧甲基-1,3,4-噻二唑与芳氧乙酰基异硫氰酸酯反应,合成了9种新的芳氧乙酰基硫脲.其结构经1H NMR, IR和元素分析确证.初步的生物活性实验结果表明,部分化合物具有较好的植物生长调节活性.     

3-芳氧甲基/芳基-6-芳基-1,2,4-三唑并[3,4-b]-1,3,4-噻二唑衍生物的合成及生物活性

报道了3-芳氧甲基/芳基-4-氨基-5-巯基-1,2,4-三唑和芳酸在三氯氧磷作用下合成了16个标题化合物.其结构经元素分析、IR,1HNMR和MS确证.同时研究了反应条件.抗菌试验表明部分化合物具有较强的生物活性.     

N-脂肪酰基-O-芳氧乙酰基乙醇胺的合成和生物活性

N-脂肪酰乙醇胺(NAE)是植物体内微量存在的一类高活性脂肪胺.为了改善NAE的溶解性能并进一步提高活性,将芳氧乙酸和NAE结合到同一个分子中,合成了一系列N-脂肪酰基-O-芳氧乙酰基乙醇胺,并测试了生物活性.生物活性结果表明大部分目标化合物促进油菜下胚轴伸长的活性优于母体化合物.苯环上含取代基的衍生物的活性优于无取代基的衍生物,其中苯环上有氯取代的化合物活性与传统的植物生长调节剂2,4-二氯苯氧乙酸相当.     

N-[5-（1-对氯苯氧乙基）-1，3，4-噻二唑-2-基]-N′-芳氧乙酰基硫脲的合成与生物活性

通过2-氨基15-(1-对氯苯氧乙基)-1，3，4-噻二唑与芳氧乙酰基异硫氰酸酯反应，合成了9种新的N-5-[(1-对氯苯氧乙基)-1，3，4-噻二唑-2-基]-N′-芳氧乙酰基硫脲，其结构经^1HNMR，IR和元素分析确证。初步的生物活性测定结果表明，部分目标化合物具有良好的植物生长调节活性。     

N-(1,3,4-噻二唑-2-基)-N'-芳氧乙酰基脲的合成及其生物活性

通过2-氨基噻二唑与芳氧乙酰基异氰酸酯反应合成了11种新的N-(1,3,4-噻二唑-2-基)-N'-芳氧乙酰基脲化合物.产率为50.2%-68.7%.用红外光谱、核磁共振氢谱和元素分析测试技术确证了它们的结构,初步的生物活性测试实验表明,部分目标化合物具有优良的植物生长调节活性,其中2d、2e和2k生长素活性的促进率分别达到40.1%、35.5%和28.8%.     

N-[5-(1-邻氯苯氧乙基)-1,3,4-噻二唑-2-基]-N′-芳酰基硫脲的合成

N-[5-(1-邻氯苯氧乙基)-1,3,4-噻二唑与芳酰基异硫氰酸酯反应,合成了10种新的N-5-[(1-邻氯苯氧乙基)-1,3,4-噻二唑-2-基]-N′-芳酰基硫脲,产率58．9％～70．2％。其结构经^1H NMR,IR和元素分析表征。室内的生物活性测定结果表明,部分化合物具有良好的植物生长调节活性。     

N-(5-对溴苯氧甲基-1,3,4-噻二唑-2-基)-N′-芳氧乙酰基硫脲的合成与生物活性

2-氨基-5-对溴苯氧甲基-1,3,4-噻二唑与芳氧乙酰基异硫氰酸酯反应,合成了9种新的芳氧乙酰基硫脲。其结构经1H NMR,IR和元素分析确证。初步的生物活性实验结果表明,部分化合物具有较好的植物生长调节活性。     

Synthesis and plant-growth regulatory activities of novel imine derivatives containing 1H-1,2,4-triazole and thiazole rings

<正>Eleven new imine derivatives 6 containing 1H-1,2,4-triazole and thiazole rings were synthesized by the condensation of 5-((1H- 1,2,4-triazol-1-yl)methyl)-4-tert-butylthiazol-2-amine with various substituted benzaldehydes.The structures of the title compounds were characterized by ~1H NMR,MS and elemental analysis.The plant-growth regulatory activities of these compounds were evaluated.The primary bioassay results indicated that these target compounds exhibited promising plant-growth regulatory activities.     

5,6-2H-1,2,4-三唑[3,4-b][1,3,4]噻二嗪衍生物的合成及抗癌活性测定

取代苯甲醛与4-氨基-5-(3,4,5-三甲氧基苯基)-1,2,4-三唑-3-硫酮(2)缩合生成5-(3,4,5-三甲氧基苯基)-4-取代苯基亚胺基-1,2,4-三唑-3-硫酮(3),再烷基加成化为新型5,6-2H-1,2,4-三唑[3,4-b][1,3,4]噻二嗪衍生物4.化合物结构经1HNMR 13C NMR,IR以及元素分析确认.采用噻唑兰(MTT)比色法进行化合物抑制人体前列腺癌细胞(PC3)体外活性测试,结果表明所合成的化合物具有不同程度的抑制PC3活性,其中化合物4a在10μmol·L-1浓度下对PC3的抑制率为75.9%.     

含吡唑1,2,4-三唑噻二嗪衍生物的合成及抑菌活性

1-苯基-3-甲基-5-氯-4-吡唑甲醛与4-氨基-5-取代苯基-1,2,4-三唑-3-硫酮缩合生成4-(1-苯基-3-甲基-5-氯吡唑次甲亚胺基)-5-(取代苯基)-2H-1,2,4-三唑-3(4H)-硫酮,再烷基加成化为新型含吡唑基5,6-2H-1,2,4-三唑[3,4-b][1,3,4]噻二嗪衍生物。 化合物结构经¹H NMR、IR以及元素分析确认。 初步生物活性测试结果表明,在100 mg/L浓度下,化合物8a(3-(2-甲基苯基)-6-(5-氯-2-甲基-4-苯基吡唑)-7-(4-硝基苯基)-5H-1,2,4-三唑[3,4-b][1,3,4]噻二嗪)对黄瓜炭疽病的抑制率达90%。     

A facile one-pot three-component synthesis of benzylideneamino-3,5-dimethyl-1H-pyrazoles

A facile, one-pot three-component protocol for the synthesis of substituted 4-(benzylideneamino)-5-(3,5-dimethyl-1H-pyrazol-1-yl)-4H-1,2,4-triazole-3-thiols have been reported by the reaction of 4-amino-5-hydrazinyl-4H-1,2,4-triazole-3-thiol with acetyl acetone and various substituted benzaldehydes via multi component reaction. The newly synthesized derivatives were characterized by their elemental analysis and spectral data. The current strategy provides heterocyclic compounds in good yields with broad substrate scope.     

Synthesis of new bis-1,2,4-triazole derivatives

A series of new 1,2/1,3-bis[o-(N-methylidenamino-3-aryl-5-phenyl-4H-1,2,4-triazole-4-yl)phenoxy]ethane/propane derivatives 4 were prepared in good yields by treatment of 4-amino-3-aryl-5-phenyl-4H-1,2,4-triazoles 2 with certain bis-aldehydes 1.Compounds 4 were reduced with NaBH(4) to afford the corresponding 1,2/1,3-bis[o-(N-methylamino-3-aryl-5-phenyl-4H-1,2,4-triazole-4-yl)phenoxy]ethane/propane derivatives 5. All new compounds were characterized by IR, (1)H-NMR, (13)C-NMR and mass spectral data.     

Synthesis and biological activity of some novel derivatives of 4-amino-3-(D-galactopentitol-1-yl)-5-mercapto-1,2,4-triazole

To discover new 1,2,4-triazole derivatives which may possess significant biological activities, we synthesized a series of novel 6-aryl-3-(D-galactopentitol-1-yl)-7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazines and 4-(arylmethylidene)amino-5-(D-galactopentitol-1-yl)-3-mercapto-4H-1,2,4-triazoles from 4-amino-3-(D-galactopentitol-1-yl)-5-mercapto-1,2,4-triazole. All the title compounds were characterized by elemental analysis, IR, 1H- and 13C-NMR. Plant growth-regulating activity tests showed that these compounds have remarkable effects on the growth of radish and wheat.     

1-(1-甲氧基-1-二茂铁基-3-芳基-丙烷-2-基)-1H-1,2,4-三唑类衍生物的合成及生物活性研究

通过在三唑类活性结构中引入较大空间位阻的二茂铁基设计合成了11个新颖的含二茂铁取代的1H-1,2,4-三唑类化合物, 其结构经元素分析, ¹H NMR谱和单晶X-ray衍射分析得到确证. 初步的生物活性测试表明, 部分化合物具有明显的植物生长调节活性.     

Preparation of aminotriazole-thione derivatives from n-aryl-n-carboxyethyl-β-alanines

Depending on the substituents in the aryl moiety, the fusion of N-aryl-N-ethoxycarbonyl-β-alanines with thiocarbohydrazide gives di- or monotriazole derivatives, namely, 4-amino-(2-{[2-(4-amino-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)ethyl]anilino}ethyl)-4,5-dihydro-1H-1,2,4-triazole-5-thiones, 1-[2-(4-amino- 5-thioxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)ethyl]-2,3-dihydroquinolin-4(1H)-ones, 4-amino-3-[2-(4-methylanilino))ethyl]-4,5-dihydro-1H-1,2,4-triazole-5-thione and 4-amino-3-[2-(4-ethoxyanilino)-ethyl]-4,5-dihydro-1H-1,2,4-triazole-5-thione. A ditriazolethione derivative was also obtained from the diethyl ester of N-ethoxycarbonyl-N-(4-ethoxyphenyl)- β-alanine.     

Cycloaddition of benzoheteroazepine II Reactions and conformations of cycloadducts on1,5-benzothiazepines and 1,5-benzodiazepines with nitrile imine and nitrile oxides

Benzodiazepine and benzothiazepine derivatives have been well known as therapeutically important compounds. Four new tricyclic heterocyclic compounds, 3a,4,5,11-tetrahydro-3H-1,2,4-triazolo[4,3-d] [1, 5]benzothiazepines (3), 3a,4,5,11-tetrahydro-3H,6H-1,2,4-triazolo[4,3-d][1,5]benzodiazepine (4), 3a, 4,5,11-tetrahydro-1,2,4-oxadiazolo[4,5-d] [1,5]benzothiazepines (5, 6) and 3a,4,5,11-tetrahydro-6H-1, 2,4-oxadiazolo[4, 5-d] [ 1, 5 ] benzodiazepines (7,8), have been synthesized by 1,3-dipolar cycloaddition reactions of 2, 3-dihydro-1, 5-benzothiazepines and 2, 3-dihydro-1H-1, 5-benzodiazepine with benzonitrile N-phenylimine and benzonitrile oxides, respectively. The conformations of some cycloadducts and cycloaddition mechanism are described.     

Efficient,One-Pot Synthesis of Triazolothiadiazinyl-pyrazolone and Pyrazolyl-triazolothiadiazine Derivatives via Multicomponent Reaction

A one-pot, multicomponent reaction of 3-(2-bromo acetyl)coumarins, 4-amino-5-hydrazino-4H-[1,2,4]triazole-3-thiol, and different derivatives of ethyl 2-(2-(aryl)hydrazono)-3-oxobutanoates provide an efficient and direct method for the synthesis of 4-(arylydrazono)-3-methyl-1-(6-(coumarin-3-yl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-3-yl)-1H-pyrazol-5(4H)-ones (4a–h). A similar methodology was also developed for the synthesis of pyrazolyl-triazolothiadiazines (9a–f) using acetyl acetone, 4-amino-5-hydrazino-4H-[1,2,4]triazole-3-thiol, and different derivatives of phenacylbromide. The resulting products were characterized by analytical and spectral data.