作者:O. G. Khudina、A. E. Ivanova、Ya. V. Burgart、N. A. Gerasimova、N. P. Evstigneeva、V. I. Saloutin
DOI:10.1007/s11172-021-3193-4
日期:2021.6
The condensation of 3-arylhydrazinylidenepentane-2,4-diones with hydrazine hydrate, 2-hydroxyethylhydrazine, benzylhydrazine hydrochloride, and 4-hydrazinylbenzenesulfonamide hydrochloride gave 4-aryldiazenyl-3,5-dimethylpyrazoles. An alternative route to the synthesis of N-substituted 4-aryldiazenylpyrazoles is based on the alkylation of NH-pyrazoles with haloalkanes. The synthesized compounds were tested for antimicrobial activity against eight pathogenic dermatophytes, yeast-like fungi of the Candida genus and the bacteria Neisseria gonorrhoeae. The structure—activity relationship analysis showed that 4-tolyldiazenylpyrazoles bearing H, AcO(CH2)4, or HO(CH2)4 substituents at the N(1) atom have the highest mycostatic activity against all the dermatophyte strains under study. However, 4-aryldiazenyl-3,5-dimethylpyrazoles proved to be quite cytotoxic against the McCoy B cell line.
3-芳基肼叉戊二酮与水合肼、2-羟基乙基肼、苄基肼盐酸盐和4-肼基苯磺酰胺盐酸盐缩合生成4-芳基偶氮-3,5-二甲基吡唑。合成N-取代的4-芳基偶氮吡唑的另一种途径是基于NH-吡唑与卤代烷的烷基化反应。合成的化合物对八种致病性皮肤真菌、念珠菌属酵母样真菌和淋病奈瑟菌进行了抗菌活性测试。结构-活性关系分析表明,在N(1)原子上带有H、AcO(CH2)4或HO(CH2)4取代基的4-甲苯基偶氮吡唑对所有研究中的皮肤真菌菌株具有最高的抑菌活性。然而,4-芳基偶氮-3,5-二甲基吡唑对McCoy B细胞系表现出相当大的细胞毒性。