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.