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. Author manuscript; available in PMC: 2017 Apr 27.
Published in final edited form as: J Am Chem Soc. 2016 Apr 12;138(16):5426–5432. doi: 10.1021/jacs.6b02276

Figure 2.

Figure 2

(A) Mass-selective (m/z = 816.3788) LC/HRMS-QTOF analysis of the ethyl acetate extracts of clb+ E. coli ΔclbP (top), synthetic 5a (middle), and co-injection (bottom). (B) Mass-selective (m/z = 816.3788) LC/HRMS-QTOF analysis of the ethyl acetate extracts of clb+ E. coli ΔclbP (top), synthetic 5b (middle), and co-injection (bottom). The y axis corresponds to the relative ion intensity (×104).