Author/Authors :
S. Ibatullin، نويسنده , , Farid M. and Shabalin، نويسنده , , Konstantin A. and Jنnis، نويسنده , , Janne V. and Shavva، نويسنده , , Alexander G.، نويسنده ,
Abstract :
The reaction of 1,2-trans-glycosyl acetates with thiourea under boron trifluoride etherate catalysis affording acetylated S-glycosyl isothiourea derivatives is described. The isothiourea derivatives obtained can be readily transformed into the desired 1-thiosugar derivative by reaction with triethylamine and subsequent alkylation or acylation of the in situ formed 1-thioaldose.