947747-16-2Relevant academic research and scientific papers
Concise syntheses of immunostimulating glycolipids, α-galactosyl ceramides
Tsujimoto, Takashi,Ito, Yukishige
, p. 5513 - 5516 (2008/02/10)
α-Galactosylceramides (α-GalCers) are well known as immunostimulating agents having therapeutic potential. To facilitate the synthesis of α-GalCers and their derivatives, a novel and convergent strategy was designed, which is expected to be versatile for the preparation of a variety of analogues in a diversity-oriented fashion. As an initial demonstration of our strategy, KRN7000 and OCH were synthesized in eight steps from a common intermediate, which is easily obtainable in a multi-gram scale.
A general and stereoselective route to α- or β- galactosphingolipids via a common four-carbon building block
Matto, Pamela,Modica, Emilia,Franchini, Laura,Facciotti, Federica,Mori, Lucia,De Libero, Gennaro,Lombardi, Grazia,Fallarini, Silvia,Panza, Luigi,Compostella, Federica,Ronchetti, Fiamma
, p. 7757 - 7760 (2008/02/13)
(Chemical Equation Presented) A general synthetic strategy toward α- or β-galactosylceramides and their analogues from 3-azido-2-O-benzyl-1-O- (4-methoxybenzyl)butane-1,2,4-triol is described. The key steps for the installation of the main lipid chain are either a diasteroselective alkynylation reaction yielding the 4R stereocenter of phytosphingosine or a Wittig olefination generating the trans double bond of sphingosine. The methodology allows the preparation of different glycolipids with variations in the structure of the sphingoid base. In particular, three α-GalCer-related compounds have been synthesized and evaluated for their ability to activate CD1d-restricted T-cells.
