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[摘要]：The total synthesis of absolute anomeric confirmation alpha-galactosylceramide analogues from raffinose is described. Using the naturally occurring alpha-galactoside raffinose as the starting material, the easily maneuverable protocol without glycosylation reactions ensured the critical alpha-linkage in the product and simplified the synthetic procedures. The immunostimulatory activities of the new alpha-galactosylceramides were validated by both in vitro and in vivo NKT cell stimulation assays. |
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