期刊
NATURE PROTOCOLS
卷 1, 期 6, 页码 3143-3152出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nprot.2006.489
关键词
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A detailed protocol is described for the application of a programmable one-pot oligosaccharide synthesis methodology to the synthesis of fucosyl GM1. This serves as a general example of the application of this method to the synthesis of any desired oligosaccharide. The method relies on a large database of relative reactivities for differentially protected tolyl thioglycoside donor molecules and a computer program to suggest the best order of addition for assembly of the oligosaccharide in optimal yield and with the fewest operations. The product is a protected form of the desired oligosaccharide isolated in 47% yield, which is then deprotected using standard procedures to provide fucosyl GM1 oligosaccharide (1) in 44% yield. The total time for synthesis of 1 from building blocks 3, 4 and 5 is approximately 4 d, whereas synthesis of the same compound by traditional stepwise procedures would take significantly longer. Protocols for the synthesis of thioglycoside building blocks 3 and 4 are also described.
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