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A Review on Biological Activities of Hydrazone Derivatives

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A Review on Biological Activities of Hydrazone Derivatives Available online at www.ijpcr.com International Journal of Pharmaceutical and Clinical Research 2016; 8(3): 162-166 ISSN- 0975 1556 Review Article A Review on Biological Activities of Hydrazone Derivatives Neha Singh, Ritu Ranjana, Manju Kumari, Birendra kumar Department of Chemistry, Gaya College, Gaya, 823001(Bihar), India Available Online:29th February, 2016 ABSTRACT The present paper, put forth a brief account on biological activities of hydrazone derivatives. Hydrazones are present in many of the bioactive heterocyclic compounds that are of very important use because of their various biological and clinical applications. The synthesis and the importance of hydrazides were studied by many researchers shows various biological, medical and industrial activities. Hydrazones have been demonstrated to possess, among other, antimicrobial, antimycobacterial, antidepressant, anticonvulsant, anticancer, antimalarial, vasodilator activity, etc. The ease of preparation, increased hydrolytic stability relative to imines, and tendency toward crystallinity are all desirable characteristics of hydrazones. Due to these positive traits, hydrazones have been under study for a long time. Keywords: Hydrazones, biological activity, Acyl hydrazones. INTRODUCTION isomer. In recent years, broad study of hydrazides and their Hydrazone moiety plays an important key role in derivative demonstrated diverse biological activities. heterocyclic chemistry1-7. Hydrazone is a class of organic During literature survey, several articles have been found compounds with structure R1R2C=NNH2. They are related with good therapeutic activities of acyl hydrazones. to ketones and aldehydes by the replacement of the oxygen Hydrazones possessing an azometine -NHN=CH- proton with the NNH2 functional group. They are formed usually constitute an important class of compounds for new drug by the action of hydrazine on ketones or aldehydes8-9. The development. Recently, hydrazide-hydrazones have alpha – hydrogen atom of hydrazones is more nucleophilic gained great importance due to their diverse biological as compared to ketones because alpha – hydrogen atom of properties including antibacterial, antifungal, hydrazone is 10 times more acidic than ketones10-11. The anticonvulsant, antiinflammatory, antimalarial and most significant reactivity of hydrazones is the antituberculosis activities. In the literature studies we nucleophilicity of hydrogen carbon atom. Hydrazone is a found that a large number of series of substituted versatile moiety that exhibits a wide variety of biological hydrazide-hydrazone derivatives were synthesized for in- activities. Acyl hydrazones are a very old class of vitro antimicrobial activities against wide variety of molecules: the first example of N-acylhydrazines was microorganisms. mentioned in 1850,12 and a number of N-unsubstituted, Hydrazone Derivatives – Its biological importance mono-and disubstituted acylhydrazines were discovered Hydrazonone nucleus exhibited immense pharmacological and explored by the scientists worldwide. Compounds of activities. Hydrazones are present in many of the bioactive general formula ArCONHN=C(R) Ar’ are known as N- heterocyclic compounds that are of very important use acyl hydrazones. Acyl hydrazones have been extensively because of their various biological and clinical investigated in recent years as they were found to be applications. Hydrazone-based coupling methods are used associated with various biological activities have in medical biotechnology to couple drugs to targeted promising analytical properties and can be used as antibodies, e.g. antibodies against a certain type of cancer catalysts. The cyclic products of acylhydrazones are an cell. The hydrazone-based bond is stable at neutral pH (in important class of heterocyclic compounds with a wide the blood), but is rapidly destroyed in the acidic range of biological activities13-17. They are synthesized by environment of lysosomes of the cell. The drug is thereby simply refluxing acid hydrazide with various carbonyl released in the cell, where it exerts its function18. compounds in methanol or ethanol. Due to the simplest Hydrazides also have been used for analytical chemistry as reaction conditions, diversified chemical libraries may be chelating agents19. Various effective compounds for constructed for discovering potential bioactive molecules. example iproniazide just like isoniazide is used as The resulting double bond between C and N of the antitubercular drug20. Nifuroxazide is an oral nitrofuran hydrazones contributes to the formation of geometrical antibiotic, used in anti-dehydration and colitis treatment, isomers (syn and anti). Geometrical isomerism may have "neutralises microbacterials" in diarrhoea, and has "a some important role in the bioactivity of the acyl spectrum which covers most enteropathogenic hydrazones hence their studies are very crucial to develop microbacterials, Shigella, Escherichia coli, Salmonella, synthetic methods for selective synthesis of a particular Staphylococci, Klebsiella, Yersinia". *Author for Correspondence Neha et al. / A Review on Biological… O O CH NH CH3 NH 3 NH Ph NH N O N CH3 Iproniazide Isocarboxazide O N NH O O N HO 2 Nifuroxazide CH OH CH CH CH S S C C N N NH OCH N N NO 2 N 3 CH CH N O (1) (2) (3) O Y O O NH NH Cl NH NH NH O N N N X (4) (5) O O N Ar Y N Ar O O NH N Z O O Methyl X LASSBio-294 Ar = thienyl LASSBio-785 Ar = thienyl N NH LASSBio-1003 Ar = furanyl O LASSBio-1004 Ar = phenyl O O LASSBio-1456 Ar = pyrrolyl (6) (7) Antioxidant activity B and C viruses and influenza A and B viruses. Designing Anjoo Kamboj et. al.21 synthesized new hydrazone safe and effective antiviral drugs is difficult, because derivatives from thiophene chalcone (1,2) and evaluated viruses use the host's cells to replicate. This makes it for their antioxidant activity. It has been found that the difficult to find targets for the drug that would interfere presence of nitro and methoxy group enhanced the with the virus without also harming the host organism's antioxidant activity of the synthesized compounds. cells. Moreover, the major difficulty in developing Activity against Toxoplasma gondii vaccines and anti-viral drugs is due to viral variation. El- P. C. Lima et al. synthesized new hydrazone molecule (3) Sabbagh and Rady23 evaluated acyclic hydrazone (4) and that compound showed protection against hydrogen derivatives which showed a higher in vitro cytotoxic peroxide mediated cytotoxicity in Freidreich’s ataxia activity against hepatoma cell line (HepG2). fibroblasts using novel iron chelators of the 2-pyridyl Leshmanicidal activity carboxaldehyde isonicotinoyl hydrazone class22. 1-Substitutedphenyl -N′- [(substitutedphenyl) methylene]- Antiviral Activity 1H pyrazole-4-carbohydrazides were synthesized and their Most of the antiviral drugs now available are designed to leishmanicidal and cytotoxic effects were compared to the help deal with HIV, herpes viruses, the hepatitis prototype drugs (ketoconazole, benznidazole, allopurinol IJPCR, March 2016, Volume 8, Issue 3 Page 163 Neha et al. / A Review on Biological… OCH3 H3CO R S S a 4-Cl b 2-Br N c 4-Br N N O NH R N NH Ph d N N 2-F N e H COOH 3-F f 2,6-Dichloro g 2,4-Dimethyl h 3-methoxy (8) (9) O N N NH OH N NH X O X' Cl H2LASSBio-466 : X=Cl, X'=H H2LASSBio-1064 : X=H, X'=Cl (10) (11) Ar N Ar N R2 HN CH H N CH OMe X N R3 HN R N Cl O N R1 NH O N N Cl (12) (13) and pentamidine) in vitro. The 1H-pyrazole-4- be the most active antitumor agent against drug-resistant carbohydrazide derivatives (5) with X = Br, Y = NO2 and pancreatic carcinoma cells. They concluded that could be X = NO2, Y = Cl demonstrated the highest activity and they a potent anticancer drug to overcome drug resistance in were more effective on promastigotes forms of L. cancer and it could be highly beneficial for patients in the amazonensis than on L. chagasi and L. braziliensis species. clinic. Vasodilator Activity Antimicrobial Activity Vasodilators are used to treat conditions such N. G. Kandile and co-workers26 synthesized hydrazones as hypertension, wherein the patient has an abnormally from 1-[4-(2-methoxybenzyl)-6-aryl pyridazin-3(2H)- high blood pressure, as well as angina, congestive heart ylidene]hydrazines and diacetyl. The synthesized products failure, and erectile dysfunction, and where maintaining a were screened for antimicrobial activity against lower blood pressure reduces the patient's risk of Staphylococcus aureus and Streptococcus faecalis, developing other cardiac problems. Arthur E. Kümmerle Escherichia coli and Pseudomonas aeruginosa. The et. al.24 disclose the synthesis, vasodilatory activity, and hydrazone derivative (1-[4-(2-methoxybenzyl)-6- identification of bioactive conformation of new N- methylphenylpyridazin-3(2H)-ylidene]hydrazine (8) acylhydrazone and N-methyl-N-acylhydrazone derivatives showed the highest biological activity. (6), structurally designed by bioisosteric replacements of Antimycobacterial Activity previously described cardioactive compounds LASSBio- Antimycobacterial drugs are used in the treatment of 294 and its N-methyl derivative LASSBio-785. Some of diseases caused by members of the Mycobacteriumgenus, these novel derivatives presented improved vasorelaxant including tuberculosis (TB) and leprosy, which have properties, being new cardiovascular drug candidates. affected man since antiquity, and the nontuberculous Antitumoral Activity mycobacterioses (NTM) that are increasingly recognised. Drug resistance is a major impediment for cancer Mycobacteria
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