Synthesis, Antigenicity Against Human Sera and Structure-Activity Relationships of Carbohydrate Moieties from Toxocara larvae and Their Analogues
作者:Akihiko Koizumi、Kimiaki Yamano、Takashi Tsuchiya、Frank Schweizer、Fumiyuki Kiuchi、Noriyasu Hada
DOI:10.3390/molecules17089023
日期:——
Stereocontrolled syntheses of biotin-labeled oligosaccharide portions containing the Galβ1-3GalNAc core of the TES-glycoprotein antigen obtained from larvae of the parasite Toxocara and their analogues have been accomplished. Trisaccharides Fuc2Meα1-2Gal4Meβ1-3GalNAcα1-OR (A), Fucα1-2Gal4Meβ1-3GalNAcα1-OR (B), Fuc2Meα1-2Galβ1-3GalNAcα1-OR (C), Fucα1-2Galβ1-3GalNAcα1-OR (D) and a disaccharide Fuc2Meα1-2Gal4Meβ1-OR
已经完成了生物素标记的寡糖部分的立体控制合成,该部分包含从寄生虫弓首蛔虫及其类似物的幼虫获得的 TES-糖蛋白抗原的 Galβ1-3GalNAc 核心。三糖 Fuc2Meα1-2Gal4Meβ1-3GalNAcα1-OR (A), Fucα1-2Gal4Meβ1-3GalNAcα1-OR (B), Fuc2Meα1-2Galβ1-3GalNAcα1-OR (C), Fucα1-2GalNAcα1-OR (C), Fucα1-2Galβ1-2Galβ1-2Galβ1-2Gal二糖 (A) -OR (E) (R = 生物素化探针) 使用 5-(甲氧基羰基) 戊基-2,3,4,6-四-O-乙酰基-β-D-吡喃半乳糖基-(1→3)-通过嵌段合成合成2-azide-4-O-benzyl-2-deoxy-α-D-galactopyranoside 作为常见的糖基受体。我们通过酶联免疫吸附试验 (ELISA)