82040-49-1

Upstream product

• 359407-34-4 1,2-di-O-benzoyl-α-L-arabinopyranose 
• 144217-03-8 1,2-di-O-benzoyl-3,4-O-isopropylidene-α-L-arabinopyranose 
• 98-88-4 benzoyl chloride 
• 87-72-9 L-(+)-arabinose 
• 58645-35-5 3,4-O-isopropylidine L-arabinopyranose 
• 56933-03-0 1,2,3-tri-O-benzoyl-α-L-arabinopyranose 
• 358-23-6 trifluoromethylsulfonic anhydride 

Downstream Products

• 359407-49-1 C₆₉H₆₆O₂₃S₃ 
• 359407-40-2 C₅₆H₅₂O₁₉S₂ 
• 82040-50-4 1,2,3-tri-O-benzoyl-4-S-(2,3,4-tri-O-acetyl-β-D-xylopyranosyl)-4-thio-α-D-xylopyranose 

Relevant academic research and scientific papers

INDUCTION OF D-XYLAN-DEGRADING ENZYMES IN Trichoderma lignorum BY NONMETABOLIZABLE INDUCERS. A SYNTHESIS OF 4-THIOXYLOBIOSE

The D-xylan degrading enzymes of Trichoderma lignorum can be induced by several oligo- and poly-saccharides.The induction is optimal when L-arabino-D-xylan is used as carbon source.The enzymes were also produced by cells grown on glycerol in the presence of 4-thioxylobiose (4-S-β-D-xylopyranosyl-4-thio-D-xylopyranose)and methyl β-D-xylopyranoside.These inducers were not taken up by the cells.The extent of induction was, however, lower than with xylobiose.Thioxylobiose was obtained in an overall yield of 55-60percent from the reaction of 1,2,3-tri-O-benzoyl-4-O-trifluoromethylsulfonyl-β-L-arabinopyranose with the sodium salt of 1-thio-β-D-xylopyranose in N',N'',N'''-hexamethylphosphoramide, followed by O-deacylation of the resulting 4-thiodisaccharide.

Stereoselective synthesis of thioxylooligosaccharides from S-glycosyl isothiourea precursors

A stereoselective synthesis of thioxylo-di-, -tri-, -tetra- and -penta-saccharides from S-glycosyl isothiourea precursors is described. The synthesis was performed starting from 2,3,4-tri-O-acetyl-β-D-xylopyranosyl isothiouronium bromide using a triethylamine promoted reaction with 1,2,3-tri-O-benzoyl-4-O-trifluoromethanesulphonyl-β-L-arabinopyranose. The resulting 4-thioxylobiose was then converted into the corresponding isothiouronium bromide and used for the synthesis of 4,4′-dithioxylotriose. Higher homologues of the series and their α-methyl glycosides were also prepared.