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Analytical HPLC traces of crude peptoid synthesis products: trace a, pentamer 1(Nspe)5; trace b, 18-mer 2 (NaeNspeNspe)6; and trace c, 36-mer 3 (NaeNspeNspe)12. Traces a and b are vertically offset for clarity. All products were purified by preparative HPLC prior to further study.
