Two series of ferrocenyl chalcones were synthesized and evaluated for in vitro antiamoebic activity against HM1:IMSS strain of Entamoeba histolytica. The results showed that compounds of series B having ferrocene ring adjacent to carbonyl linkage were generally more active than compounds of series A. Compounds having unsubstituted phenyl ring, methoxy substitution, thiomethyl group, chloro group and nitro group, exhibited better antiamoebic activity than the reference drug metronidazole. The toxicological studies of these compounds on human kidney epithelial cell line showed that all compounds were non-toxic. The compound 1-ferrocenyl-3-(4-nitrophenyl)-2-propen-1-one (18) was found most active and least toxic among all compounds.
Ferrocenyl-substituted 3-cyano-2-methylpyridines were easily prepared by the sonication of α,β-unsaturated carbonyl compounds substituted by ferrocenes in acetonitrile in the presence of potassium t-butoxide.
Novel Ferrocenyl Linked Pyrazoline Analogs as Potent Antiamoebic Agents
作者:Humaira Parveen、Sayeed Mukhtar、Amir Azam
DOI:10.1002/jhet.2427
日期:2016.3
Some novelferrocenyllinkedpyrazolineanalogs were synthesized, well characterized, and evaluated for in vitro antiamoebic activity against HM1 : IMSS strain of Entamoeba histolytica. Most of the compounds exhibited higher antiamoebic activity with the IC50 value in the range of 0.12–1.20 μM, than the reference drug metronidazole, (IC50 value of 1.78 μM). Compound 9 showed the most promising antiamoebic
Ferrocenylsubstituted α,β-unsaturated ketones in the synthesis of dihydropyrimidinethiones
作者:Vyacheslav N. Postnov、Alexander V. Goncharov、Ines Hocke、Dmitry P. Krut'ko
DOI:10.1016/0022-328x(93)80431-a
日期:1993.9
ferrocenylsubstituted α,β-unsaturatedketones with thiourea in alkaline ethanol leading to the corresponding dihydropyrimidinethiones. Products were isolated as yellow or orange crystals with yields of 65–95%. Structures were proved by high resolution 1H NMR spectra. Ferrocenylsubstituted dihydropyrimidinethiones have been shown to convert quantitatively into the initial α,β-unsaturatedketones under heating
已经研究了二茂铁基取代的α,β-不饱和酮与硫脲在碱性乙醇中的反应,生成相应的二氢嘧啶硫酮。分离出的产物为黄色或橙色晶体,产率为65–95%。通过高分辨率的1 H NMR光谱证明了结构。已显示二茂铁基取代的二氢嘧啶硫酮在存在水的条件下与碱性乙醇一起加热可定量转化为初始的α,β-不饱和酮。
Reaction of monocyclic ferrocenyl-4,5-dihydropyrazoles with β-dicarbonyl compounds
作者:E. I. Klimova、E. A. Vazquez Lopez、T. Klimova、M. Martinez Garcia、N. N. Meleshonkova、L. Ruiz Ramirez
DOI:10.1007/s11176-005-0106-4
日期:2004.12
Monocyclic 3- and 5-ferrocenyl-4,5-dihydropyrazoles with a free NH group in the molecule react with acetylacetone to form the corresponding enaminocarbonyl compounds. The latter were isolated as a single isomer, presumably E. 3-Ferrocenyldihydropyrazoles and 5-ferrocenyl-3-(p-methoxyphenyl)-4,5-dihydropyrazole analogously react with acetoacetic ester. 5-Ferrocenyl-3-phenyl-, 3-(p-bromophenyl)-5-ferrocenyl, and 3,5-diferrocenyl-4,5-dihydropyrazoles react with acetoacetic ester to form acetoacetylpyrazolides.