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. Author manuscript; available in PMC: 2012 Sep 18.
Published in final edited form as: Bioorg Med Chem Lett. 2011 Mar 23;21(17):5084–5087. doi: 10.1016/j.bmcl.2011.03.072

Figure 2.

Figure 2

HPLC (Calcium form, sulfonated divinyl benzene-styrene copolymer support and eluted with H2O) profile of final reaction mixture in Scheme 3 compared with authentic samples.