中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl)-(1->3)-1,5-anhydro-4,6-O-benzylidene-2-deoxy-D-lyxo-hexitol | 1123178-80-2 | C47H42O13 | 814.843 |
The tetrasaccharide 4, a substructure of ganglioside GQ1b?, shows a remarkable affinity for the myelin-associated glycoprotein (MAG) and was therefore selected as starting point for a lead optimization program. In our search for structurally simplified and pharmacokinetically improved mimics of 4, antagonists with modifications of the core disaccharide Gal?(1-3)GalNAc, as well as the terminal ?(2-3)- and the internal ?(2-6)-linked neuraminic acid were synthesized and tested in target-based binding assays. Compared to the reference tetrasaccharide 4, the most potent antagonist 17 exhibits a 360-fold improved affinity. Furthermore, pharmacokinetic parameters such as stability in the cerebrospinal fluid, logD and permeation through the BBB indicate the drug-like properties of antagonist 17.