Synthesis and In vitro activities of a spacer-containing glycophospholipid ligand of a lipopolysaccharide receptor involved in endotoxin tolerance
作者:Daniel Charon、Michelle Mondange、Jean-François Pons、Karine Le Blay、Richard Chaby
DOI:10.1016/s0968-0896(98)00027-3
日期:1998.6
with tetrabenzyl pyrophosphate. Hydrogenation on a Pd on carbon catalyst permitted the isolation of 6-(6-aminohexanoyl)-2,3-dideoxy-2,3-di-[(R)-3-hydroxy-tetradecanamido ] -alpha-D-glucopyranose 1,4-diphosphate (PPDm2-B). In mouse macrophages, PPDm2-B enhanced the lipopolysaccharide (LPS)-dependent secretion of tumor necrosis factor alpha (TNF-alpha), and inhibited the LPS-induced desensitization of these
由N,N'-酰化和双磷酸化的2,3-二脱氧-2,3-二氨基-D-葡萄糖的衍生物组成的糖脂,在碳6处带有6-氨基己酰基侧链作为间隔臂(PPDm2-B),已经合成了其并评估了其对鼠巨噬细胞的作用。合成从2,3-二氨基-D-葡萄糖开始,这基本上是通过已知程序从葡糖胺获得的,因为尝试使用另一种已知前体(3-硝基糖苷)会导致意想不到的结果。用(D)-3-苄氧基肉豆蔻酸的羟基琥珀酰亚胺酯进行选择性N-酰化,然后通过6-叠氮基丙烯酰氯酯化唯一的伯羟基官能团,并通过用四苄基焦磷酸酯处理将所得的1,4-二醇磷酸化。在碳催化剂上的钯上氢化可分离出6-(6-氨基己基)-2,3-二脱氧-2,3-二-[(R)-3-羟基-十四烷酰胺基]-α-D-吡喃葡萄糖1,4-二磷酸酯(PPDm2-B)。在小鼠巨噬细胞中,PPDm2-B增强了肿瘤坏死因子α(TNF-α)的脂多糖(LPS)依赖性分泌,并抑制了LPS诱导的这些细胞脱敏