An enzyme substrate, 4-nitrophenyl-β-D-ribofuranoside, was synthesized from commercially available 1,2,3,5-tetra-O-acetyl-β-D-ribofuranoside and p-nitrophenol using an efficient glycosylation. The synthesized substrate can fulfill the requirements for the detection of ribofuranosidase.
Radio Frequency Identification (RFID) is a new generation of Auto Identification and Data collection technology which helps to automate management processes and allows identification of large number of tagged objects like weapons, using radio waves. In this paper, we propose a novel RFID based management system: RFID based Weapons Management System (RWMS) since weapons management plays an important role in the military control. Since its reliability and flexibility, RFID technique has shown big advantages than the conventional management systems. Time saving, fast accessing of weapons, eliminating manual errors and high accuracy are the main benefits of the RFID based Weapons Management. RFID based Weapons Management system would allow fast transaction flow for the army and will prove immediate and long term benefits to army in traceability and security.
An efficient approach for the synthesis of isonucleoside of tubercidin was described. The key step in the synthesis was the direct coupling of pyrrolo [2,3-d] pyrimidine with the cyclic sulfate of 1-deoxy-D-ribose. This reaction proceeded with high regiospecificity and stereospecificity and could have broad application for the synthesis a series of isonucleoside.
The enantiomer isomeric nucleosides of 1,3-bis (1'-deoxy-β-ribofuranose-2'-yl)-thymine were synthesized from 1-deoxy-5-O-triphenylmethyl-ribose in high yield and selectivity. The key step is the coupling of 1-deoxy-5-O-triphenylmethyl-2,3-O-cyclosulphate-ribose and thymine using cesium carbonate as the base.
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