共查询到20条相似文献,搜索用时 15 毫秒
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2,4-二氟苯甲酸或2-氟苯甲酸与二氯亚砜经酰氯化反应,再与邻氨基苯甲酸反应后在醋酸酐中闭环,最后与取代苯并噻唑胺反应合成了9个新型的N-[2-(取代苯并噻唑-2-氨基甲酰基)苯基]取代氟基苯甲酰胺(6a~6i),其结构经1H NMR,13C NMR,IR和元素分析表征。采用MTT法对6a~6i进行抑制PC3癌细胞体外活性测试,结果表明6a~6i具有不同程度的抑制PC3癌细胞活性,其中10μmol.L-16b对PC3的抑制率为69.9%。 相似文献
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通过间羟基苯硼酸与2,4-二氯嘧啶的Suzuki反应及其后酚羟基的烷基化得到4-芳基-2-氯嘧啶衍生物. 然后, 采用Pd(PPh3)4/dppf催化剂, 在温和的条件下实现了4-芳基-2-氯嘧啶类化合物和芳香胺的偶联. 合成了3个结构新颖的2-芳氨基嘧啶类化合物. 中间体及产物的结构均经由IR, 1H NMR, 13C NMR, MS和元素分析表征而予以证实. 相似文献
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Ten methyl 2‐methoxyimino‐2‐{2‐[(substituted benzylidene)aminooxymethyl]phenyl}acetate and 2‐methoxy‐ imino‐2‐{2‐[(substituted benzylidene)aminooxymethyl]phenyl}‐N‐methylacetamide derivatives were synthesized. Structures of the new compounds were characterized by IR, 1H NMR and GC‐MS data. These compounds at 10 µg/mL were tested in vitro against five pathogenic fungi, namely, Sclerotonia, Botrytis cinerea Pers, Gibberella zeae, Rhizoctorua solani and Pyricularia oryzae. Compounds G5 , G6 , G7 and G8 showed potent antifungal activities against Botrytis cinerea Pers, G7 against Gibberella zeae and G7 , G8 against Rhizoctorua solani, respectively. 相似文献
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A series of new 1-(2-arylvinyl)-2-azolyl-1-pyridylethanols-1 has been obtained with various positions of the nitrogen atom
in the pyridine fragment and with substituents in the benzene ring, by the reaction of (2-arylvinyloxiran-2-yl)pyridines with
triazole and imidazole, for agrochemical screening. The compounds mentioned displayed high fungicidal activity.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1167–1174, August, 2007. 相似文献
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Addition of organometallic reagents to optically active methyl 1-(2-methoxycarbonyl-6-trifluoromethylphenyl)pyrrole-2-carboxylate provided the corresponding tetrasubstituted diols and/or pyrrolo[1,2-a]benzoxazepines as pure enantiomers or racemates depending on the organometallic reagents used. Rotational energy barriers around the interconnecting C-N bonds were estimated by molecular modeling calculations and NMR measurements with the aim of clarifying the stereochemical stability order of the new atropisomeric compounds. NMR methods for the determination of the enantiomeric purity of the new compounds are proposed. 相似文献
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以芳甲酰肼和对硝基苯甲酰氯为主要原料, 合成出了10个酰氨基硫脲化合物5a~5j, 其中有6个(5d, 5f~5j)为新化合物. 在无需任何酸性催化剂条件下, 将制得的酰氨基硫脲在DMF中加热回流直接脱水关环合成出了9个2-芳基-5-(4-硝基苯甲酰氨基)-1,3,4-噻二唑化合物6a~6i, 其中7个(6b~6d, 6f~6i)为新化合物. 利用IR和1H NMR证明了化合物5存在两种异构体. 目标产物的结构通过IR, 1H NMR和元素分析进行了表征. 相似文献
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E. Vishnu Vardhan Reddy P. Bhanu Prakash Sandip Khobare J. Ramanatham N. Devanna 《合成通讯》2013,43(3):414-422
Novel 1-methyl-2-(2-substituted-oxazol-4-yl)-1H-benzimidazole derivatives were obtained in good yields and purity by treating corresponding 2-benzimidazolyl esters with acetamide in the presence of BF3-etherate, a Lewis acid. 相似文献
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以4-羟基香豆素为原料,经氯化、醚化和异硫氰酸化3步反应制得中间体——4-(4-异硫氰酸酯苯氧基)香豆素(3);3与取代芳香胺经加成反应合成了9个新型的1-(4-取代苯基)-3-[4-(4-氧香豆素基)苯基]硫脲衍生物(4a~4i),其结构经1H NMR,13C NMR,IR和MS(ESI)表征。采用浑浊度法测试了4的抑菌活性。结果表明:4a、4b、4e和4f抑制烟草青枯菌活性EC50值分别为112.02、121.39、88.72和86.90μg·mL~(-1),优于噻菌铜(130.25μg·mL~(-1));4a、4b、4e和4f抑制番茄青枯菌活性EC50值分别为107.89、110.69、82.43和82.48μg·mL~(-1),优于噻菌铜(123.94μg·mL~(-1))。 相似文献
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