Supplementary Material to Synthesis and antimicrobial activities of novel 8-(1-alkyl/alkylsulphonyl/alkoxycarbonyl-benzimidazol-2-ylmethoxy)-5-chloroquinolines

The synthesis of a series of novel 8-(1-alkyl/alkylsulphonyl/alkoxycarbonyl-benzimidazol-2-ylmethoxy)-5-chloroquinoline derivatives is reported. These derivatives were prepared by the condensation of o-phenylenediamine with [(5-chloroquinolin-8-yl)oxy]acetic acid, followed by substitution at nitrogen with different electrophilic reagents in presence of an appropriate base to give a series of nitrogen heterocycles containing the benzimidazole and quinoline nuclei. The structures of the compounds were confirmed based on 1H-NMR, 13C-NMR, IR and mass spectral data. Almost all the compounds exhibited promising antibacterial activity against Salmonella typhimurium and Staphylococcus aureus. Some of the compounds showed good antifungal activities against Aspergillus niger but the antifungal activities against Candida albicans were disappointing

Effect of Triphaladi Avaleha as an adjuvant therapy in the management of Thalassemia

Thalassemia is the most common inherited single-gene (autosomal recessive) disorder in the world. Scientists worldwide predict that thalassemia will become a considerable health issue in the next century. It is a new disease entity for Ayurvedic medicine, and hence, it is called Anukta Vyadhi in Ayurveda; but we can understand it by careful scrutiny of the clinical presentation and the investigation results described in the available literature. Modern medical management is aimed at maintaining the hemoglobin level at 10 – 12 g/dl. A post-transfusion hemoglobin level of 9.5 g/dl is said to be sufficient to maintain active life. Thus, blood transfusion therapy is the only treatment, but it can result in hemosiderosis (iron overload), a complication with a fatal outcome. The transfusional iron overload is compounded by increased intestinal absorption of iron. The most important factors associated with survival, and also those deciding the outcome of bone marrow transplant (the only curative therapy) are, age at which chelation therapy is introduced and the success with which serum ferritin is maintained below 2500 ng/ml. Iron chelators used in modern medicine to achieve this goal are expensive and associated with side effects, and hence, associated with poor adherence to the treatment. The present study is an endeavor to explore the efficacy of Triphaladi Avaleha as an iron chelator in the management of thalassemia, in comparison to a control group managed by routine modern therapy

Natural treatment system models for wastewater management: a study from Hyderabad, India

International audienc

Synthesis and antibacterial activity of some novel <i>N</i>-substituted 3-[4-(1-alkyl/acyl/aroyl-1<i>H</i>-benzimidazol-2-yl)phenyl]acrylate derivatives

1208-1215Synthesis of a series of novel 3-[4-(1-alkyl/acyl/aroyl-1H-benzimidazol-2-yl)phenyl]acrylate derivatives has been reported. These derivatives are prepared by condensation of o-phenyle­nediamine with 4-bromobenzoic acid to give 2-(4-bromophenyl)-1H-benzimidazole which undergoes Heck reaction with alkyl acrylates to give the above benzimidazole derivatives. Subsequent reactions of these compounds with different types of electrophiles afford a series of the corresponding 1N-substituted alkyl/acyl/­aroyl/sulfonyl derivatives. Furthermore, the antibacterial activities of these compounds have been checked against Staphylococcus aureus and Salmonella typhimurium bacterial strains but the results are found to be disappointing

L-Pyrrolidine-2-Carboxylic Acid Sulfate: A New Ionic Liquid for the Synthesis of Bioactive Tetrahydrobenzo[b]pyrans

Published ArticleMulticomponent reactions (MCRs), a significant subclass of reac tions, are one-pot processes in which three or four easily-approachable components react to form a single product. The methodology is a powerful synthetic tool for the preparation of important drugs and other biologically active compounds. 1 MCRs have been useful in the development of environ- mentally-friendly and less expensive procedure s for the generation of libraries of heterocy- clic compounds 2 and the development of MCRs can le ad to new, efficient, synthetic methodologies. Tetrahydrobenzo[b]pyrans an d their derivatives are an important class of heterocyclic compounds with antic oagulant, antitumor, spasmoly tic, antibacterial, diuretic, potassium channel activating and insulin-sensitizing activities. 3–6 4H-Benzo[b]pyrans are usually synthesized from a -cyano cinnamonitrile derivatives with dimedone catalyzed by acid or base. 7 Recently MCRs have been used for their preparation. As compared to the conventional linear step synthesis, they can make the process easier, reduce time, save money, energy, and raw materials, resulting in both economic and environmental bene- fits. 8–9 A number of methods have been reported using dimedone, aromatic aldehydes and malononitrile in the presence of catalysts, such as CeCl 3 ¢ 7H 2 O, 10 N-methylimidazole, 11 tet- ramethyl ammonium hydroxide, 12 MgO, 13 amines, 14 2,2,2-trifluoroethanol, 15 and TiO 2 . 16 Other methods have involved microwave heating, 17 ultrasonic irradiation, 18 electrosynthe- sis, 19 hexadecyldimethylbenzylammonium bromide (HDMBAB), 20 Na 2 SeO 4 , 21 DABCO, 2

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Not AvailableFish cell line has emerged as an important tool in fishery biotechnology. In recent years, various fish cell lines have been developed by different researchers across the country. National Repository on Fish cell lines, established with the aim to preserve fish cell lines for training and education to stakeholders, has started functioning at National Bureau of Fish Genetic Resources, Lucknow. This repository is supposed to characterize and preserve the fish cell lines developed across the country and serve as a national referral centre for Indian and exotic fish cell lines. Currently, the repository is maintaining 50 fish cell lines deposited by various research institutes in India, including the cell lines developed at cell culture facility of National Bureau of Fish Genetic Resources. The cell lines have been successfully cryopreserved after verifying its authenticity by sequence analysis of two mitochondrial genes, viz. 16S rRNA and cytochrome c oxidase sub-unit I. Chromosomal analysis, transfection efficiency and immunocytochemistry are also being used to characterize the cell lines. The facility is serviceable for the collection, deposition and distribution of fish cell lines. This paper discusses the status as well as the methodology adopted for fish cell lines development, characterization and storage at NRFC.Department of Biotechnology, Government of India, New Delhi