Efficient Synthesis of Man<sub>2</sub>, Man<sub>3</sub>, and Man<sub>5</sub> Oligosaccharides, Using Mannosyl Iodide Donors<sup>1</sup>
作者:Son N. Lam、Jacquelyn Gervay-Hague
DOI:10.1021/jo051360d
日期:2005.10.1
resulting from attack at the C-2 acetate. However, upon warming to room temperature the orthoacetate quantitatively rearranged to the desired oligosaccharide. Employing a 3,6-dihydroxy acceptor and subjecting it to double glycosidation quickly afforded high mannose sugars in nearly quantitative yields. Glycosyl iodide donors offer advantages over previously reported chloride donors as the reactions are