Sarcophrynium brachyatachys, commonly known as Yoruba soft cane or the praying plant, is traditionally used for packaging food items. Only a few natives recognize usefulness of leaves treatment cough and bronchitis in herbal medicine. This study was designed to isolate characterize bioactive component. Successful percolation carried out with 96 percent ethanol get crude extract. Afterwards, fra...

  Some of fused dihydrobenzo [4,5]imidazo [1,2-a] pyrmido [5,4-e] pyrmidin-3(4H)-amine  derivatives were synthesized,  theses derivatives derived from 4-amino-2-(4-chloro or bromophenyl) -1,2-dihydropyrimido[1,2-a] benzimidazole-3-carbonitrile (4,5), which prepared by reaction 1H-benzimidazol-2-amine (1) and p-chlorobenzaldehyde p-bromobenzaldehyde (2)  and malononitrile (3)...

density, viscosity and refractive index of pure, binary and ternary mixtures of diethanolamine (dea) and methyl diethanolamine (mdea) with water have been measured at different temperatures from 288.15 k to 323.15 k at atmospheric pressure. also, this study presents the effects of mixture composition and temperature upon these thermo- physical properties. to measure the density and refractive i...

selectfluor [1-(chloro methyl) -4-flouro -1,4-di azonia bicyclo[2,2,2] octane bis (tetraflouro-borate)] catalyzed the preparation of quinoxaline and 2,3-dihydo pyrazine derivatives through one -pot condensation of 1,2-di amines with 1,2-di carbonyls in solvent and under solvent- free conditions. this catalyst is commercially available, inexpensive, reusable, stable to air and moisture, and rela...

five new 1-hydroxy-2-(1-alkyloxymethyl)-9,10-anthraquinones (9a-e) have been prepared. selective nitration of 2-methyl-9,10-anthraquinone, reduction to the corresponding amine, diazotization and treatment by sulfuric acid solution afforded the 1-hydroxy-2-methyl-9,10-anthraquinone in good yield as the key intermediate. reaction with dimethylsulphate/k2co3 and subsequent monobromination with nbs...

In chronic infections, pathogens are often in the presence of other microbial species. For example, Pseudomonas aeruginosa is a common and detrimental lung pathogen in individuals with cystic fibrosis (CF) and co-infections with Candida albicans are common. Here, we show that P. aeruginosa biofilm formation and phenazine production were strongly influenced by ethanol produced by the fungus C. a...

treatment of 1-(5-bromo-2-chloro-6-methylpyrimidin-4-yl)-1-methylhydrazine withdimethylthiocarbamoylchloride gave 7-chloro-n,n, 1,5-tetramethyl-1h-pyrimido[4,5-e][1,3,4]thiadiazin-3-amine in basic acetonitrile. the latter compounds were reacted withsecondary amines in boiling ethanol to afford the related 7-amino derivatives.

A total of ten biological compounds were isolated from the leaves of Barleria montana Nees. by using GC-MS analysis. Among them, the Benzaldehyde,2-hydroxy-6-methyland Urs-12-en-24-oicacid,3-oxo-,methyl ester,(+)as major compounds. The aqueous and different solvent extracts (acetone, chloroform, di-chloromethane, ethanol and methanol) of the plant were tested for antibacterial activity against ...

The aim of this work is to investigate the e ect of the accessibility of functional groups of solid surfaces on bacterial adhesion. For this purpose, well-controlled and well-described smooth self-assembled monolayers on surfaces with various surface chemical densities were developed and used as substrate for bacterial adhesion experiments. These experiments were performed under liquid and stat...

Selectfluor [1-(chloro methyl) -4-flouro -1,4-di azonia bicyclo[2,2,2] octane bis (tetraflouro-borate)] catalyzed the preparation of quinoxaline and 2,3-dihydo pyrazine derivatives through one -pot condensation of 1,2-di amines with 1,2-di carbonyls in solvent and under solvent- free conditions. This catalyst is commercially available, inexpensive, reusable, stable to air and moisture, and rela...