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. Author manuscript; available in PMC: 2011 Oct 13.
Published in final edited form as: Carbohydr Res. 2010 Aug 21;345(15):2228–2232. doi: 10.1016/j.carres.2010.08.011

Figure 1.

Figure 1

Structures of the HS precursor chains prepared without isotope enrichment (1) or with isotope enrichment (2, 3). The locations of 13C-isotopes are indicated by filled dark circles.