| 摘要 |
The invention relates to a method for the synthesis of compounds of general formula (1A) and salts thereof wherein one of the R groups is an α-sialyl moiety and the other is H, X1 represents a carbohydrate linker, A is a D-glucopyranosyl unit optionally substituted with fucosyl, R1 is a protecting group that is removable by hydrogenolysis, the integer in is 0 or 1, by a transsialidation reaction. |
