Synthesis and Characterization of N,N,N-trimethyl-O-(ureidopyridinium)acetyl Chitosan Derivatives with Antioxidant and Antifungal Activities

New Benzimidazoles Derivatives: Synthesis, Characterization and Antifungal Activities

One of the most important goals in medicinal chemistry is the development of new heterocyclic compounds with pharmaceutical activity. Thus, a novel series of the derivatives of benzimidazole were synthesized and the structures of all the synthesized compounds have been confirmed by IR, 1 H- and 13C-NMR, Mass Spectroscopy and elemental analysis. The title compounds have been evaluated for antifu...

synthesis and characterization of some macrocyclic schiff bases

ماکروسیکلهای شیف باز از اهمیت زیادی در شیمی آلی و دارویی برخوردار می باشند. این ماکروسیکلها با دارابودن گروه های مناسب در مکانهای مناسب می توانند فلزاتی مثل مس، نیکل و ... را در حفره های خود به دام انداخته، کمپلکسهای پایدار تولید نمایند. در این پایان نامه ابتدا یک دی آلدئید آروماتیک از گلیسیرین تهیه می شود و در مرحله بعدی واکنش با دی آمینهای آروماتیک و یا آلیفاتیک در رقتهای بسیار زیاد منجر به ت...

Synthesis and characterization of some antifungal Oalkyl (O-aryl) trithiophosphato derivatives of 1,3,2- dioxaborinanes

Complexes of the type (OCH2C(CH3)2CH2OB)2S2P(S)OR (where R=Me,Et,Pri,Bui,Ph,CH2Ph) have beensynthesized by the reactions of 2-chloro-1,3,2-dioxaborinanes and potassium salt of O-alkyl (O-aryl)trithiophosphates in 2:1 molar ratio in refluxing benzene. The product are formed as white or light yellowcoloured monomeric solid, soluble in common organic solvents and exhibit high sensitivity towardsat...

new benzimidazoles derivatives: synthesis, characterization and antifungal activities

Title: Synthesis, Characterization of Pyrano-[2,3-c]-Pyrazoles Derivatives and Determination of Their Antioxidant Activities

Background: Antioxidants are developed to assist the immune system and overcome oxidative stress, the aggression of cellular constituents due to imbalance between reactive oxygen species and the inner antioxidant system. The main objective of this study was to search for new and potent antioxidants to protect humans against diseases associated with oxidative stress. Methods: In this study, thr...