Problem to be solved: to provide a novel N-linked sugar chain modified amide compound.Solution: an N-linked sugar chain modified amide compound of formula (1).The cyclic structure A1 of formula (1) is a sugar or sugar derivative containing oxygen O1, carbon C1, and carbon C2 as the constituent atoms of the structure A2 is an amide compound, and the nitrogen of the amide group of the compound is bonded to carbon C3 A3 is not a sugar, and it may not exist, and if present, the constituent atom of the structure Combine and form a sugar chain R1 is a group containing carbon, oxygen or sulfur bonded to hydrogen, halogen or carbon C3.Diagram【課題】新規なN-結合型糖鎖修飾アミド化合物を提供する。【解決手段】式(1)のN-結合型糖鎖修飾アミド化合物とする。式(1)の環状構造A1は、該構造の構成原子として酸素O1、炭素C1および炭素C2を含む糖又は糖の誘導体;A2はアミド化合物であり、該化合物のアミド基の窒素が炭素C3に結合し;A3は糖であり存在しなくてもよく、存在する場合、構造A1の構成原子に結合してA1と糖鎖を構成し;R1は水素、ハロゲン又は炭素C3に結合した炭素、酸素もしくは硫黄を含む基である。【選択図】図28
