Synthesis of α-Galactosyl Ceramide (KRN7000) and Analogues Thereof via a Common Precursor and Their Preliminary Biological Assessment

被引:27
|
作者
Michieletti, Mario [1 ]
Bracci, Antonio [1 ]
Compostella, Federica [2 ]
De Libero, Gennaro [3 ]
Mori, Lucia [3 ]
Fallarini, Silvia [1 ]
Lombardi, Grazia [1 ]
Panza, Luigi [1 ]
机构
[1] Univ Piemonte Orientale Amedeo Avogadro, Dipartimento Sci Chim Alimentari Farmaceut & Farm, I-28100 Novara, Italy
[2] Univ Milan, Dipartimento Chim Biochim & Biotecnol Med, I-20133 Milan, Italy
[3] Univ Basel Hosp, Dept Biomed, CH-4031 Basel, Switzerland
来源
JOURNAL OF ORGANIC CHEMISTRY | 2008年 / 73卷 / 22期
关键词
D O I
10.1021/jo8019994
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A new practical synthesis of alpha-GalCer and of its analogues is presented, opening the chance to easily modify the sphingosine chain. The common precursor is a disaccharide, obtained by coupling tetra-O-benzyl-D-galactose with allyl 2,3-O-isopropylidene-D-lyxofuranoside. Introduction of alkyl chains via Wittig reaction (for alpha-GalCer and OCH) or via Williamson reaction (for oxa analogues) followed by standard synthetic steps allows one to efficiently obtain such compounds. The analogues are able to activate iNKT cells when presented by CD1d expressing cells.
引用
收藏
页码:9192 / 9195
页数:4
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