Use of synthetic glycolipids as universal adjuvants for vaccines against cancer and infectious diseases
摘要:
本发明涉及一种增强哺乳动物体内抗原免疫原性的方法和组合物,包括将所述抗原与包含本文所述的化学合成糖脂化合物 Formula I 的佐剂组合物一起给予。根据本发明,将 Formula I 化合物用作佐剂,至少部分归因于增强和/或延长特异性 Th1 类型反应,特别是 CD8+ T 细胞反应。本发明的方法和组合物可用于预防和治疗各种传染性和肿瘤性疾病。
Intramolecular Nitrogen Delivery for the Synthesis of C-Glycosphingolipids. Application to the C-Glycoside of the Immunostimulant KRN7000
摘要:
The key reaction in this approach to C-glycosphingolipids is the stereoselective iodocyclization of a sugar-linked homoallylic carbonimidothioate. E and Z reaction substrates were assembled in a convergent fashion via an alkene metathesis strategy and exhibited the same alkene facial selectivity in the iodocyclization irrespective of alkene geometry, although the E alkene was found to be less reactive.
Novel synthetic C-glycolipids, their synthesis and use to treat infections, cancer and autoimmune diseases
申请人:Tsuji Moriya
公开号:US20050222048A1
公开(公告)日:2005-10-06
The invention is directed to novel compounds of formulae (I), (II) and (III):
wherein X is O or NH;
R
3
is OH or a monosaccharide and R
4
is hydrogen, or R
3
is hydrogen and R
4
is OH or a monosaccharide;
R
5
is hydrogen or a monosaccharide; and pharmaceutically acceptable salts or esters thereof. The invention is also directed to the use of the compounds both directly and as immune adjuvants for treating cancer, infectious diseases and autoimmune diseases. The invention is also directed to syntheses of the intermediates which can be used to make these novel compounds.
C-Galactosylceramide diastereomers via Sharpless asymmetric epoxidation chemistry
作者:Jun Pu、Richard W. Franck
DOI:10.1016/j.tet.2008.06.007
日期:2008.9
as a key reaction. Opening of a hydroxyepoxide with sodium azide provided an anti vicinal azido diol with inversion of configuration at the azide-bearing carbon while opening with Ti(O-i-Pr)2(N3)2 gave syn vicinal azido diol with retention. The latter, unusual outcome could be rationalized either by invoking Ti-catalyzed intramolecular double SN2 inversion or by epoxideopening/intramolecular delivery
α-半乳糖苷神经酰胺的C-糖苷类似物 (KRN7000) 以 Sharpless 不对称环氧化为关键反应,以 19 个线性步骤合成。与叠氮化钠一羟基的环氧化物的开口提供了一种抗在叠氮化物-轴承碳与构型反转邻叠氮基二醇而开口用的Ti(O-我-Pr)2(N 3)2,得到顺式的连位二醇叠氮基与保留。后者不寻常的结果可以通过调用 Ti 催化的分子内双 S N 2 反转或通过环氧化物开放/从 Ti 复合物分子内传递叠氮化物来合理化。
Synthesis of CH<sub>2</sub>-linked α-galactosylceramide and its glucose analogues through glycosyl radical-mediated direct <i>C</i>-glycosylation
Direct C-glycosylation of a conformationally constrained and stable C1-sp3 hybridized carbohydrate donor with a carefully designed sphingosine unit afforded the CH2-linked analogue of antitumor-active KRN7000 and its glucose congener.
(O-glycoside) bonds of glycans and glycoconjugates are chemically and biologically vulnerable, and therefore C-glycosides are of interest as more stable analogs. We hypothesized that, if the O-glycoside linkage plays a vital role in glycan function, the biologicalactivities of C-glycoside analogs would vary depending on their substituents. Based on this idea, we adopted a “linkage-editingstrategy” for the creation