Beilstein-Institut, Beilstein Journal of Organic Chemistry, (9), p. 1867-1872, 2013
DOI: 10.3762/bjoc.9.218
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The chemical synthesis of a series of mucin-type oligosaccharide fragments 1–7 containing an α-linked aminopropyl spacer ready for glycoarray attachment is reported. A highly convergent and stereoselective strategy that employs two different orthogonal protected galactosamine building blocks was used to access all of the targets. A tandem deprotection sequence, that did not require chromatography-based purification between steps, was employed to globally unmask all protecting groups and all final targets were isolated in good to excellent yields.