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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 6.

Figure 6

Low energy models of the oxazolone intermediates derived from A) Fmoc-Ser(Trt)-OH and B) Fmoc-Ser(Ac3GlcNAcβ)-OH (13) generated from the Conformational Search utility in Macromodel. 2011. Panels (C) and (D) are expansions of the oxazolone ring with the Hα-Cα-Cβ-Oβ dihedral angle value labeled.