Author/Authors :
Colinas، نويسنده , , Pedro A and Ponzinibbio، نويسنده , , Agust??n and Lieberknecht، نويسنده , , Albrecht and Bravo، نويسنده , , Rodolfo D، نويسنده ,
Abstract :
C-Disaccharides and C,O-trisaccharides, with a quaternary anomeric center, were prepared in good yields and excellent stereoselectivity by a route involving the Wittig reaction of glycosyl phosphonium salts and hydrogenation or glycosidation of exo-glycals as key steps.