New Tris(hydroxypyridinones) as Iron and Aluminium Sequestering Agents: Synthesis, Complexation and In Vivo Studies
作者:Sílvia Chaves、Sérgio M. Marques、André M. F. Matos、Andreia Nunes、Lurdes Gano、Tiziano Tuccinardi、Adriano Martinelli、M. Amélia Santos
DOI:10.1002/chem.201001335
日期:2010.9.10
4‐HPs), but differing in the position of the amide linkage along the chelating “arm”. In spite of expected differences in the tripodal ligands, such as acidity and hydrogen‐bonding networks, they share important properties, namely, a mild hydrophilic character (log P ca. −1.2 to −1.4) and a strong chelating affinity for Fe and Al (pFe=27.9 and pAl=22.0 for NTA(BuHP)3; pFe=29.4 and pAl=22.4 for NTP(PrHP)3)
New tris-3,4-HOPO lanthanide complexes as potential imaging probes: complex stability and magnetic properties
作者:Ana C. Mendonça、André F. Martins、Andrea Melchior、Sérgio M. Marques、Sílvia Chaves、Sandrine Villette、Stéphane Petoud、Pier Luigi Zanonato、Marilena Tolazzi、Célia S. Bonnet、Éva Tóth、Plinio Di Bernardo、Carlos F. G. C. Geraldes、M. Amélia Santos
DOI:10.1039/c2dt32237d
日期:——
lanthanide complexes with a tripodal tris-3-hydroxy-4-pyridinone (tris-3,4-HOPO) ligand – NTP(PrHP)3. Among the studies herein performed, major relevance is given to the thermodynamicstability of the complexes with a series of Ln3+ ions (Ln = La, Pr, Gd, Er, Lu) and to the magnetic relaxation properties of the Gd3+ complex. This hexadentate ligand enables the formation of (1 : 1) Ln3+ complexes with high