Figure 7.
HPLC chromatograms for the resolution of 15 (a,b) and 16 (c,d) on poly-2S (a,c) and h-poly-2S (b,d). Eluent: hexane–2-propanol (99:1, v/v) (a,b), MeOH–H2O (90:10, v/v).
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