3-(2-Hidroksietil)-1-(3-aminopropil)-1h-imidazol-3-ium bromid sentezi, karakterizasyonu ve biyolojik aktiviteleri

Bir N-heterohalka karben tuzu olarak, 3-(2-hidroksietil)-1-(3-aminopropil)-1H-imidazol-3-ium bromid, 3-(1H-imidazol1-il)propan-1-amin ile 2-bromoetanol’ün reaksiyonu sonucunda sentezlenmiştir. Tuz, N-heterohalka karbenlerin en kararlı gruplarından biri olan imidazol tuzu olarak da isimlendirilebilir. Ürünün moleküler yapısı FTIR, 1H NMR, 13C NMR, GS-MS, elemental analiz yöntemleri ile aydınlatılmıştır. Ayrıca, antimikrobiyal, antifungal ve antikanser aktiviteleri incelenmiştir. Probit analizi yapılarak, HeLa ve HepG2 kanser hücre serileri üzerinde 24 saatlik uygulama sonrası IC50 değerlerinin sırasıyla 155,955µM ve 76,769µM olduğu saptanmıştır. Sentezlenen maddenin sağlıklı fare embriyonik fibroblast (MEF) hücreleri üzerinde zararlı bir etkisine rastlanmamıştır. Escherichia coli (Migula, 1895) O157:H7, Listeria monocytogenes (Pirie, 1940) ATCC 19115 bakterileri ve Candida albicans (Berhout, 1923) ATCC 10231 mayası üzerinde ise 32µM’lık konsantrasyonda kayda değer antimikrobiyal ve antifungal aktivitesinin de olduğu belirlenmiştir.3-(2-hydroxyethyl)-1-(3-aminopropyl)-1H-imidazole-3-ium bromide as an N-heterocyclic carbene salt was synthesized by the reaction of 3-(1H-imidazole-1-yl )propane -1-amine with 2-bromoethanol. The salt can also be named as imidazole salt which is one of the most stable group of N-heterocyclic carbenes. The molecular structure of the product was elucidated by FTIR, 1H NMR, 13C NMR, GS-MS and elemental analysis. The antimicrobial, antifungal and anticancer activities of the imidazole salt were also examined. The probit analysis revealed that IC50 values on HeLa and HepG2 cell lines were 155.955μM and 76.769μM, respectively, at the end of 24 hours treatment. It also was determined that the product has no harmful effect on healthy mouse embryonic fibroblasts (MEF) cells. Significant antimicrobial and antifungal activities of the salt on Escherichia coli (Migula, 1895) O157:H7 and Listeria monocytogenes (Pirie, 1940) ATCC 19115 bacteria and the yeast Candida albicans (Berhout, 1923) ATCC 10231 were determined at a concentration value of 32μM

Siklohekzandikarboksilli asidin sentezi ve ph etkisi ile su ve organik fazlardan ekstraksiyonunun incelenmesi

In this study, iron cyclohexanedicarboxylic acid was synthesized under refluxing conditions. The structural characterization of the complex was performed by using physico-chemical and spectroscopic methods. The effect of pH on division constant and extraction percentages in water and organic phase was investigated with the extraction method. At the end of the experiment, most of the Fe2+ ions in the water phase at pH=7.5 passed into the organic phase. Above this pH,the extraction percentage decreased because of the transition from water phase to organic phase. Iron cyclohexanedicarboxylic acid was extracted with ether, petroleum ether, benzole and carbon tetrachloride from aqueous solution and microbial activities of the complex were studied. The activity data showed that iron cyclohexanedicarboxylic acid has an important antibacterial and antifungal activities.Bu çalışmada, reflux şartlarında demir siklohekzandikarboksilli asit sentezlenmiştir. Kompleksin yapısı fizikokimyasal ve spektroskopik metodlarla karakterize edilmiştir. Daha sonra reaksiyon sırasında pH’ın su ve organik fazlardaki paylaşma sabitleri ve ekstraksiyon yüzdelerine (%E) etkisi ekstraksiyon metodu ile incelenmiştir. Deney sonucunda, su fazındaki Fe2+ iyonlarının çoğu pH=7.5’ta organik faza geçmiştir. Bu pH’tan sonra ekstraksiyon yüzdesi su fazından organik faza geçiş yüzünden azalmıştır. Demir siklohekzandikarboksilli asit eter, petrol eteri, benzol ve karbon tetra klorür ile sulu çözeltilerinden ekstre edilmiş, ilave olarak kompleksin mikrobiyal aktiviteleri çalışılmıştır. Aktivite sonuçları, demir siklohekzandikarboksilli asitin önemli antibakteriyal ve antifungal aktiviteye sahip olduğunu göstermişti

Synthesis, Structural Analysis, and Biological Activities of Some Imidazolium Salts

Four newly synthesized imidazolium salts were characterized by nuclear magnetic resonance, vibrational spectra, and mass spectra. Then, the density functional theory calculations were performed to obtain the molecular configurations on which the theoretical nuclear magnetic resonance and infrared spectra were consequently obtained. The comparison of calculated spectra with the experimental spectra for each molecule leads to the conclusion that the theoretical results can be assumed to be a good approach to their molecular configurations. The in vitro biological activities of the salts on the selected bacteria and cancer cell lines were determined by using the broth dilution method according to Clinical and Laboratory Standards Institute guidelines. The 1,3-bis(2-hydroxyethyl) imidazolidinium bromide and 3-(2-ethoxy-2-oxoethly)-1-(3-aminopropyl)-1H-imidazol-3-ium bromide showed efficiency on Bacillus cereus ATCC 11778. The 3-bis(2-carboxyethyl)-4-methyl-1-H-imidazol-3-ium bromide was effective on HeLa while a similar effect was observed on Hep G2 with 3-(2-carboxyethyl)-1-(3-aminopropyl)-1H-imidazol-3-ium bromide