Antimony(V) and Bismuth(V) Complexes of Lapachol: Synthesis, Crystal Structure and Cytotoxic Activity

Autor: Frédéric Frézard, Cynthia Demicheli, Carlos A. de Simone, Ludmila Gonçalvez de Oliveira, Meiriane Mariano da Silva, Claudio Luis Donnici, Eufrânio N. da Silva Júnior, Elene C. Pereira-Maia, Flávia C. S. de Paula
Rok vydání: 2011
Předmět:
Zdroj: Molecules
Molecules, Vol 16, Iss 12, Pp 10314-10323 (2011)
Molecules; Volume 16; Issue 12; Pages: 10314-10323
ISSN: 1420-3049
DOI: 10.3390/molecules161210314
Popis: Antimony(V) and bismuth(V) complexes of lapachol have been synthesized by the reaction of Ph3SbCl2 or Ph3BiCl2 with lapachol (Lp) and characterized by several physicochemical techniques such as IR, and NMR spectroscopy and X-ray crystallography. The compounds contain six-coordinated antimony and bismuth atoms. The antimony(V) complex is a monomeric derivative, (Lp)(Ph3Sb)OH, and the bismuth(V) complex is a dinuclear compound bridged by an oxygen atom, (Lp)2(Ph3Bi)2O. Both compounds inhibited the growth of a chronic myelogenous leukemia cell line and the complex of Bi(V) was about five times more active than free lapachol. This work provides a rare example of an organo-Bi(V) complex showing significant cytotoxic activity.
Databáze: OpenAIRE