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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Bioorg Med Chem Lett. 2016 Feb 15;26(7):1809–1812. doi: 10.1016/j.bmcl.2016.02.034

Figure 1.

Figure 1

Structures and synthetic pathway of the compounds utilized in this study. Top) The structures of ellipticine, N-methyl-5-demethyl ellipticine (ET-1), and 2-methyl-N-methyl-5-demethyl ellipticinium iodide (ET-2) are shown. Bottom) The approach used to synthesize ellipticine derivatives ET-1 and ET-2 is shown. Reagents and Conditions: i) aminoacetaldehyde diethyl acetal, 100 °C, stirred, 4 h.; ii) NaBH4, methanol, RT, stirred, 2 h.; iii) N(C2H5)3, chloroform, benzenesulfonyl chloride, stirred, RT, 18 h.; iv) 6 N HCl, dioxane, N2, reflux, 2 h.; v) CH3I, DMF, stirred, RT, 5 h.