A new series of enaminones derived from 3-acetyl-1-aryl-4-benzoyl-5-phenyl-1 H-pyrazoles has been obtained and their reactions with hydrazine hydrate, guanidine hydrochloride, 3-amino-1,2,4-triazole, 2-aminobenzimidazole and active methylenenitriles are described. The mechanisms and regioselectivity of the studied reactions are discussed. The results of screening of the antitumor activity of the enaminones against the human breast cancer cell line MCF-7 revealed that the compounds showed less activity than that of the reference drug doxorubicin. Their activity was found to depend on the nature of the substituent group on the 1-aryl moiety. The order of activity of the series is: H > 4–Cl > 4-MeO > 4-Me > 4-NO2.
研究人员从 3- 乙酰基-1-芳基-4-苯甲酰基-5-苯基-1 H-吡唑中获得了一系列新的烯酮,并描述了它们与水合肼、盐酸胍、3-氨基-1,2,4-三唑、2-氨基苯并咪唑和活性亚甲基腈的反应。讨论了所研究反应的机理和区域选择性。烯酮类化合物对人类乳腺癌细胞系 MCF-7 的抗肿瘤活性筛选结果表明,这些化合物的活性低于参考药物多柔比星。研究发现,它们的活性取决于 1-芳基上取代基的性质。该系列化合物的活性顺序为H;4-Cl;4-MeO;4-Me;4-NO2。