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- W2071051840 abstract "Preorganized tripodal ligands such as the N-picolyl derivatives of cis,cis-1,3,5-triamino-cis,cis-1,3,5-trimethylcyclohexane (Kemp's triamine) were prepared as analogues to N,N',N''-tris(2-pyridylmethyl)-cis,cis-1,3,5-triaminocyclohexane (tachpyr) in hopes of enhancing the rate of formation and stability of the metal complexes. A tricyclic bisaminal was formed via the reduction of the Schiff base, while the tri(picolyl) derivative was synthesized via reductive amination of pyridine carboxaldehyde. Their cytotoxicities to the HeLa cell line were evaluated and directly compared to tachpyr and N,N',N''-tris(2-pyridylmethyl)tris(2-aminoethyl)amine (trenpyr). Results indicate that N,N',N''-tris(2-pyridylmethyl)-cis,cis-1,3,5-triamino-cis,cis-1,3,5-trimethylcyclohexane (Kemp's pyr) exhibits cytotoxic activity against the HeLa cancer cell line comparable to tachpyr (IC50 approximately 8.0 microM). Both Kemp's pyr and tachpyr show higher cytotoxic activity over the aliphatic analogue of trenpyr (IC50 approximately 14 microM), suggesting that the major contributor to the activity is the ligand's ability to form a stable and tight complex and that the equatorial/axial equilibrium impacting the complex formation for the cyclohexane-based ligands is not significant." @default.
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- W2071051840 date "2005-11-10" @default.
- W2071051840 modified "2023-10-16" @default.
- W2071051840 title "<i>N</i>-Picolyl Derivatives of Kemp's Triamine as Potential Antitumor Agents: A Preliminary Investigation" @default.
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- W2071051840 doi "https://doi.org/10.1021/jm050724r" @default.
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