abstract |
The present invention relates to a method for synthesizing compounds of general formula (1A) and salts thereof by transsialation, wherein one of the R groups in general formula (1A) is an α-sialyl moiety, the other is H, and X 1 is Carbohydrate linker, A is a D-glucopyranosyl unit optionally substituted with fucosyl, R 1 is a protecting group that can be removed by hydrogenolysis, and m is an integer of 0 or 1. |