Figure 4.
Trial demixing of M-13a-d. Compounds elute in order of fluorine content: 13a (0 F), 13b (5 F), 13c (10 F), 13d (15 F). FluoroFlash PF-C8 column, 90/10 MeCN/water for 10 min, then 100% MeCN
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