目的以七乙酰-1-α-溴代乳糖为供体,以不同聚合度的缩乙二醇(n=4,5,6)为连接臂合成三个二聚乳糖化合物;以重症烧伤大鼠为模型,研究其体内抗白细胞-内皮细胞粘附活性。结果研究表明与对照组(食盐水)相比,这三个合成的二聚乳糖化合物具有良好的抗休克活性。结论以缩乙二醇为连接臂合成的二聚乳糖化合物具有良好的抗休克活性;聚合度的不同,对抗休克活性有显著影响。
Three divalent β-D-galactopyranosyl-(1 → 4)-β-D-glucopyranosides were synthesized using acetylated lactosyl bromide as donor and polyethylene glycols with different polymeric degree (n = 4, 5, 6) as linker, and evaluated for in vivo inhibitory activity to leukocyte-endothelial cell adhesion on severe bum-shock rats. The result showed that the length of linkers had apparent influence on anti cell adhesion activity.