aureus such strains can be dangerous and probably show high degree of pathogenicity. 21 and 22 Therefore, glck expression is highly critical in the pathogenesis of S. aureus moreover in such strains increased cell wall biosynthesis is the critical feature where requirement of Glucose-6-phosphate is very high. All authors have none to declare. “
“Oxazole is a five membered ring system containing N and O as heteroatoms at 1st and 3rd position. They have attracted great interest in recent years because of their various biological and analytical properties. Substituted oxazole derivatives were found to be associated with antibacterial,
antifungal,1 antitubercular,2 anti-inflammatory,3 analgesic, HIV inhibitor and muscle relaxant properties. Oxazoles functionalised at 2nd and 4th position with different oxidation state of appending carbon atom have found important application in the synthesis Panobinostat molecular weight of more complex structures. Recently, much attention has been focused on the preparation of 2,4 and 2,4,5-substituted oxazoles because of their utilities as building blocks for complex natural products.4 Innovative therapeutic applications such find more as brain derived neurotrophic factor inducers,5 as antibacterial in intraperitoneal sepsis,6 prion disease therapeutics7 and antiTB activities are also reported. Oxazole and their reduced
derivatives are found in marine sources. Neopeltolide having potent in vitro action in lung adenocarcinoma, ovarian sarcoma. 8 In view of the above information
we initiated a process of preparing novel 2,4-disubstitued oxazole analogues having the general structure of (A) and screening them for their antioxidant and anticancer activities. Figure options Download full-size image Download as PowerPoint slide The melting point of the synthesised compounds 3-mercaptopyruvate sulfurtransferase was determined by using open capillary tubes in scientific melting point apparatus and was uncorrected. The progress of the reaction and the purity of the compounds was analysed by using precoated TLC plates; the solvent system used was petroleum ether and ethyl acetate (1:9). The spots were visualised under UV light. IR spectra of the synthesised compounds were recorded using Shimadzu FT-IR 8310 Japan and KBr press. Proton NMR spectra of the synthesised compounds were recorded on Bruker Biospin Avance-300 MHz at SAIF, IIT, Chennai. Mass spectra of the synthesised compounds were recorded on Shimadzu MS-MS QP5050 at SAIF, IIT, Chennai. Various aromatic acids (1; 0.052 mol) in 30–40 ml of absolute alcohol, triethylamine (0.104 mol) were refluxed with phenacyl bromide (0.05 mol) for 1.5 h. The progress of the reaction was monitored by TLC analysis and after completion of the reaction, the reaction mixture was poured into ice cold water with constant stirring. The precipitate (2) was filtered, washed with water and recrystallised from 80% alcohol. Phenylacyl ester (2; 0.01 mol) was added to a mixture of 20 ml xylene and 47% BF3/Et2O (0.7 ml).