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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Bioorg Med Chem Lett. 2013 Jan 30;23(7):2197–2201. doi: 10.1016/j.bmcl.2013.01.107

Figure 1.

Figure 1

Guanide derivative structures. Spermidine and spermine were derivatized to make the phenylguanide, 1-naphthylguanide, or 2-naphthylguanide derivatives. The dotted lines on the guanide functional groups show the attachment point to the nitrogens of the spermidine and spermine starting amines.