N, N'-carbonyldiimidazole-mediated DBU-catalyzed one-pot synthesis of urea-tethered glycosyl amino acids and glycoconjugates

An efficient, mild, simple, and alternative one-pot protocol for the synthesis of urea-tethered glycosyl amino acids mediated by N,N'- carbonyldiimidazole employing DBU as a catalyst is described. This protocol is also extended for the synthesis of urea-tethered disaccharides and oligosaccharides. © Georg Thieme Verlag Stuttgart - New York