Produção Nacional
Revisado por pares
Platinum(II) complexes containing long-chain hydrophobic N-alkyl-diamine ligands: Synthesis, characterization, molecular modeling, and cytotoxic activity
2012; Elsevier BV; Volume: 115; Linguagem: Inglês
10.1016/j.jinorgbio.2012.05.007
ISSN1873-3344
AutoresTatiane Teixeira Tavares, Glaucia Franco Teixeira, Carolina Mauad Lopes, Willian Tássio Gomes Novato, Heveline Silva, Míriam Teresa Paz Lopes, Mauro V. de Almeida, Richard Michael Grazul, Hélio Ferreira Dos Santos, Ana Paula Soares Fontes,
Tópico(s)Organometallic Complex Synthesis and Catalysis
ResumoA series of novel platinum(II) complexes derived from N-alkyl-ethanediamine and N-alkyl-propanediamine ligands were prepared and characterized. These complexes contain a long chain aliphatic diamine where the carbon length is variable and present a hydroxyl group in two different positions. The complexes with the ethanediamine derivatives were prepared from K2PtCl4. Interestingly, the propanediamine derivatives did not react well with this platinum salt under the experimental conditions normally employed and could only be obtained from the more reactive K2PtI4. A theoretical molecular modeling study was performed to understand this difference in reactivity and it showed that the conformation around the diamine plays an important role in the ring closure step of complex formation. The complexes had their cytotoxicity investigated in B16F1, CT26, B16F10, and MDA cell lines. Some of them demonstrated superior activity when compared to cisplatin and carboplatin. We were also able to confirm a structure–activity relationship between cytotoxicity and carbon chain length.
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