在该系列中,合成了六种新的2-取代的5-芳基磺酰基-1,3-恶唑-4-腈,并通过IR,1 H NMR,13 C NMR光谱,元素分析和色谱-质谱法进行了表征。美国国家癌症研究所根据其自身的筛选方案,通过单次高剂量(10 -5 M)对60种癌细胞系评估了化合物的抗癌活性。在下一阶段,已选择化合物进行五剂量分析。所有合成的化合物分别在亚微摩尔(0.2–0.6μM)和微摩尔浓度(1-3μM)时,对最敏感的细胞系表现出生长抑制(GI50)和细胞抑制活性(TGI)。细胞毒性活性(LC 50),除4d以外,这些化合物对最敏感的细胞系的抗药性也很高(5–6μM)。所有化合物均对白血病细胞系具有高选择性,其中4e和4f具有最佳的抗增殖和抑制细胞生长的选择性。化合物4c和4f对肾和乳腺癌亚组显示出相当大的细胞毒性选择性。我们的结果为新型2-取代的5-芳基磺酰基-1,3-恶唑-4-甲腈的抗癌活性提供了证据,该
Enamides of the general formula Cl2C=C(X)NHCOR1, where X = CN, COOAlk, CONH2, P(O)(OEt)(2), P(O)Ph-2, PPh3 Cl-, were treated in succession with alkane- or arenethiols and silver carbonate to obtain 5-alkyl(aryl)thio-2-R-1-4-X-1,3-oxazoles with high selectivity. The latter were converted into the corresponding sulfonyl derivatives. Unlike 2-acylamino-3,3-dichloroacrylonitriles which react with sodium hydrogen sulfide in a nonselective fashion, reactions of derivatives like Cl(ArS)C=C(CN)NHCOR1 with NaHS lead to hitherto unknown 5-arylthio-4-thiocarbamoyl-2-R-1-1,3-oxazoles whose structure was confirmed both by spectral methods and by cyclocondensation with bromoacetophenone according to Hantzsch. Heating of some 2-aryl-5-mercapto-4-X-1,3-oxazoles with benzenethiols results in recyclization into the corresponding 2,4-disubstituted 5-arylthio-1,3-thiazoles, presumably due to prototropic tautomerism in the 5-mercapto-oxazole fragment.
Dependence of the anticancer activity of 1,3‐oxazole derivatives on the donor/acceptor nature of his substitues
作者:Maryna V. Kachaeva、Diana M. Hodyna、Nataliya V. Obernikhina、Stepan G. Pilyo、Yulia S. Kovalenko、Volodymyr M. Prokopenko、Oleksiy D. Kachkovsky、Volodymyr S. Brovarets
DOI:10.1002/jhet.3711
日期:2019.11
the relative position of the boundary levels (HOMO end LUMO). The quantum‐chemical modeling was performed; the special parameter φ0 for 1,3‐oxazole derivativescorrelates with the experimental results. Quantum‐chemical calculations of the special parameter φ0 allow modeling the pharmacological activity of 1,3‐oxazole derivatives by introducing donor or acceptor substituents at position 2 or 5. This work
Enamides of the general formula Cl2C=C(X)NHCOR1, where X = CN, COOAlk, CONH2, P(O)(OEt)(2), P(O)Ph-2, PPh3 Cl-, were treated in succession with alkane- or arenethiols and silver carbonate to obtain 5-alkyl(aryl)thio-2-R-1-4-X-1,3-oxazoles with high selectivity. The latter were converted into the corresponding sulfonyl derivatives. Unlike 2-acylamino-3,3-dichloroacrylonitriles which react with sodium hydrogen sulfide in a nonselective fashion, reactions of derivatives like Cl(ArS)C=C(CN)NHCOR1 with NaHS lead to hitherto unknown 5-arylthio-4-thiocarbamoyl-2-R-1-1,3-oxazoles whose structure was confirmed both by spectral methods and by cyclocondensation with bromoacetophenone according to Hantzsch. Heating of some 2-aryl-5-mercapto-4-X-1,3-oxazoles with benzenethiols results in recyclization into the corresponding 2,4-disubstituted 5-arylthio-1,3-thiazoles, presumably due to prototropic tautomerism in the 5-mercapto-oxazole fragment.
Synthesis, characterization, and in vitro anticancer evaluation of 2-substituted 5-arylsulfonyl-1,3-oxazole-4-carbonitriles
作者:Maryna V. Kachaeva、Stepan G. Pilyo、Victor V. Zhirnov、Volodymyr S. Brovarets
DOI:10.1007/s00044-018-2265-y
日期:2019.1
cytostatic selectivity. Compounds 4c and 4f displayed considerable cytotoxic selectivity towards the renal and breast cancer subpanels. Our results provided evidence for anticancer activities of novel 2-substituted 5-arylsulfonyl-1,3-oxazole-4-carbonitriles which could be useful for developing new anticancer drugs. These substances could also be used as an excellent framework in anticancer research that may
在该系列中,合成了六种新的2-取代的5-芳基磺酰基-1,3-恶唑-4-腈,并通过IR,1 H NMR,13 C NMR光谱,元素分析和色谱-质谱法进行了表征。美国国家癌症研究所根据其自身的筛选方案,通过单次高剂量(10 -5 M)对60种癌细胞系评估了化合物的抗癌活性。在下一阶段,已选择化合物进行五剂量分析。所有合成的化合物分别在亚微摩尔(0.2–0.6μM)和微摩尔浓度(1-3μM)时,对最敏感的细胞系表现出生长抑制(GI50)和细胞抑制活性(TGI)。细胞毒性活性(LC 50),除4d以外,这些化合物对最敏感的细胞系的抗药性也很高(5–6μM)。所有化合物均对白血病细胞系具有高选择性,其中4e和4f具有最佳的抗增殖和抑制细胞生长的选择性。化合物4c和4f对肾和乳腺癌亚组显示出相当大的细胞毒性选择性。我们的结果为新型2-取代的5-芳基磺酰基-1,3-恶唑-4-甲腈的抗癌活性提供了证据,该