Synthesis and relaxation properties of two non-ion complexes of gadolinium(III) and manganese(II) with derivatives from diethylene triamine pentaacetic acid and isoniazid
摘要:
In this paper, two novel ligands (H3L1, H2L2) have been synthesized from diethylene triamine pentaacetic acid (DTPA) and isoniazid in different conditions. H3L1 has three carboxylic groups, and H2L2 has two carboxylic groups. Their non-ion complexes of GdL1 and MnL2 holding promise of magnetic resonance imaging (MRI) are synthesized, and relaxivity of complexes are determined, respectively. The relaxivity of GdL1 (R-1 = 6.07 L.mmol(-1).s(-1)) and MnL2 (R1 = 6.94 L.mmol(-1).s(-1)) are larger than that of Gd(DTPA)(2-) (R-1 = 4.34 L.mmol(-1).s(-1)). It is more significative that relaxivity of MnL2 is larger than that of GdL1. The results showed that two non-ion complexes are prospective MRI contrast agents. (C) 2013 Elsevier B.V. All rights reserved.
Comparison between Gd-DTPA and several bisamide derivatives as potential MRI contrast agents
作者:Jianghua Feng、Guoying Sun、Fengkui Pei、Maili Liu
DOI:10.1016/s0968-0896(03)00263-3
日期:2003.7
Four neutral gadolinium complexes of diethylenetriaminepentaaceticacid (DTPA)-bisamidederivatives have been synthesized and characterized. Their potential application as tissue-specific and low-osmolarity MRI contrast agents has been evaluated by in vitro and in vivo experiments. Their measured relaxivities in D(2)O, bovine serum albumin and human serum transferrin solutions showed favorable relaxation
Synthesis Neutral Rare Earth Complexes of Diethylenetriamine-N,N"-bis(acetyl-isoniazid)-N,N',N"-triacetic Acid as Potential Contrast Enhancement Agents for Magnetic Resonance Imaging
作者:Ding-Wa Zhang、Zheng-Yin Yang、Bao-Dui Wang、Shi-Ping Zhang、Ru-Dong Yang
DOI:10.1248/cpb.54.1203
日期:——
A novel ligand, diethylenetriamine-N,N''-bis(acetyl-isoniazid)-N,N',N''-triacetic acid (H(3)L) has been synthesized from diethylene triamine pentaacetic acid (DTPA) and isoniazid. Ligand and its five neutral rareearth (RE=La, Sm, Eu, Gd, Tb) complexes holding promise of magnetic resonance imaging (MRI) were characterized on the basis of elemental analysis, molar conductivity, (1)H-NMR spectrum, FAB-MS
Synthesis and relaxation properties of two non-ion complexes of gadolinium(III) and manganese(II) with derivatives from diethylene triamine pentaacetic acid and isoniazid
作者:Dingwa Zhang、Xueli Zhang、Zhilan Lin、Huijiao Zhang、Yaoting Chen、Shuni He
DOI:10.1016/j.inoche.2013.11.003
日期:2014.2
In this paper, two novel ligands (H3L1, H2L2) have been synthesized from diethylene triamine pentaacetic acid (DTPA) and isoniazid in different conditions. H3L1 has three carboxylic groups, and H2L2 has two carboxylic groups. Their non-ion complexes of GdL1 and MnL2 holding promise of magnetic resonance imaging (MRI) are synthesized, and relaxivity of complexes are determined, respectively. The relaxivity of GdL1 (R-1 = 6.07 L.mmol(-1).s(-1)) and MnL2 (R1 = 6.94 L.mmol(-1).s(-1)) are larger than that of Gd(DTPA)(2-) (R-1 = 4.34 L.mmol(-1).s(-1)). It is more significative that relaxivity of MnL2 is larger than that of GdL1. The results showed that two non-ion complexes are prospective MRI contrast agents. (C) 2013 Elsevier B.V. All rights reserved.