作者:Hélène G. Bazin、Laura S. Bess、Mark T. Livesay、Kendal T. Ryter、Craig L. Johnson、Jeffrey S. Arnold、David A. Johnson
DOI:10.1016/j.tetlet.2006.01.137
日期:2006.3
An efficient and scalable synthesis of the potent vaccine adjuvant RC-529 (3) and TLR4 agonist CRX-524 (4) is described in eight steps from 1,3,4,6-tetra-O-acetyl-2-amino-2-benzyloxycarbonyl-2-deoxy-β-d-glucopyranose (10c) in ca. 25% overall yield. The synthesis features the strategic use of the N-Cbz group for β-glycosylation and the selective N,N,O-triacylation of common advanced intermediate 15
有效的,可扩展的有效疫苗佐剂RC-529(3)和TLR4激动剂CRX-524(4)的合成从1,3,4,6-四-O-乙酰基-2-氨基-2的八个步骤进行了描述-约苄氧基羰基-2-脱氧-β-d-吡喃葡萄糖(10c)。总产率为25%。合成设有战略性使用的Ñ为β糖基化和选择性N,N,共同高级中间体O形triacylation -Cbz组15与([R)-3-十四酰氧基或decanoyloxytetradecanoic酸(8,9)晚在合成。(R)-3-羟基十四酸(R)-3-对映体的制备和增强的新方法。还描述了6),3和4的关键成分以及细菌脂质A。