| abstract |
An asparagine derivative of an α-2,3-linked sugar chain having 11 to 7 monosaccharide units; an asparagine derivative of an α-2,6-linked sugar chain having fluorinated 11 to 7 monosaccharide units; and a sugar chain asparagine derivative which comprises a sugar chain asparagine in which the amino-group nitrogen of the asparagine has been protected by a lipid-soluble protective group and the N-acetylglucosamine on the non-reducing end side contains at least one fucose. |