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. Author manuscript; available in PMC: 2013 Apr 11.
Published in final edited form as: J Am Chem Soc. 2012 Mar 27;134(14):6316–6325. doi: 10.1021/ja212188r

Figure 1.

Figure 1

Model coupling reaction and key synthetic materials. The “a” and “b” designations in the numbering refer to the l and d isomers of the glycopeptides (or non-glycosylated peptides), respectively.