172218-52-9

Upstream product

• 3068-31-3 1-bromo-2,3,4-tri-O-acetyl-α-D-xylopyranose 
• 172218-49-4 3,4-dinitrophenyl 2,3-di-O-acetyl-4-O-triethylsilyl-β-D-xylopyranoside 
• 172218-48-3 3,4-dinitrophenyl 2,3,4-tri-O-acetyl-β-D-xylopyranoside 
• 172218-50-7 3,4-dinitrophenyl 2,3-di-O-acetyl-β-D-xylopyranoside 
• 71693-33-9 3,4-dinitrophenyl β-D-xylopyranoside 
• 128376-91-0 2,3,4-tri-O-acetyl-α-D-xylopyranosyl trichloroacetimidate 
• 577-71-9 3,4-dinitophenol 
• 172218-51-8 3,4-dinitrophenyl 2,3,2',3',4'-penta-O-acetyl-β-D-xylobioside 

Relevant academic research and scientific papers

Syntheses and testing of substrates and mechanism-based inactivators for xylanases

The syntheses of the 2,5- and 3,4-dinitrophenyl β-xylobiosides by two separate routes are described, as well as the syntheses of the 2,4-dinitrophenyl β-glycosides of 2-chloro-2-deoxyxylobiose and 2-deoxy-2-fluoro-xylobiose.Both the 3,4- and 2,5-dinitrophenyl β-xylobiosides proved to be good substrates for the Bacillus subtilis xylanase, with kcat/Km values of 1.0 and 34.4 mM-1s-1, respectively.Excellent time-dependent inactivation of the exoxylanase/glucanase from Cellulomonas fimi was provided by 2,4-dinitrophenyl 2-deoxy-2-fluoro-β-xylobioside, according to inactivation parameters of ki = 0.057 min-1 and Ki = 0.0035 mM.Keywords: Aryl β-xylobiosides; 2-Deoxy-2-halo-β-D-xylopyranosides; 2-Deoxy-2-halo-β-xylobiosides; Substrate; Inactivator; Glycosidase inhibitors; Endo-xylanase 4)-Xylan xylanohydrolase, EC 3.2.1.8>